./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--yurex.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:58:28,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:58:28,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:58:28,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:58:28,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:58:28,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:58:28,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:58:28,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:58:28,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:58:28,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:58:28,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:58:28,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:58:28,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:58:28,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:58:28,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:58:28,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:58:28,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:58:28,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:58:28,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:58:28,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:58:28,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:58:28,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:58:28,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:58:28,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:58:28,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:58:28,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:58:28,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:58:28,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:58:28,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:58:28,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:58:28,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:58:28,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:58:28,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:58:28,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:58:28,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:58:28,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:58:28,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:58:28,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:58:28,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:58:28,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:58:28,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:58:28,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:58:28,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:58:28,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:58:28,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:58:28,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:58:28,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:58:28,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:58:28,357 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:58:28,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:58:28,358 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:58:28,358 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:58:28,359 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:58:28,360 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:58:28,360 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:58:28,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:58:28,361 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:58:28,361 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:58:28,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:58:28,362 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:58:28,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:58:28,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:58:28,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:58:28,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:58:28,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:58:28,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:58:28,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:58:28,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:58:28,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:58:28,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:58:28,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:58:28,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:58:28,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:58:28,367 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:58:28,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:58:28,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:58:28,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:58:28,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:58:28,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:58:28,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:58:28,370 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_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 [2022-11-25 23:58:28,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:58:28,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:58:28,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:58:28,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:58:28,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:58:28,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2022-11-25 23:58:32,030 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:58:32,768 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:58:32,769 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2022-11-25 23:58:32,836 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/data/7169ff5c8/d0f01d852c924835b3acd41f4f13dd54/FLAG3be6bf10f [2022-11-25 23:58:32,859 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/data/7169ff5c8/d0f01d852c924835b3acd41f4f13dd54 [2022-11-25 23:58:32,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:58:32,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:58:32,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:58:32,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:58:32,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:58:32,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:58:32" (1/1) ... [2022-11-25 23:58:32,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728ac4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:32, skipping insertion in model container [2022-11-25 23:58:32,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:58:32" (1/1) ... [2022-11-25 23:58:32,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:58:33,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:58:34,172 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:58:34,326 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:58:34,393 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:58:34,411 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:58:34,508 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:34,511 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:34,513 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:34,514 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:58:34,523 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:34,529 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:34,530 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:34,532 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:58:34,760 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,765 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:34,779 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:34,783 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:58:34,785 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:34,790 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:58:34,793 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:34,809 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,816 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,825 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:34,839 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-25 23:58:34,841 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:34,849 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:34,850 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:34,852 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,861 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,863 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:58:34,863 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:34,864 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:58:34,869 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,872 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,873 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,877 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,890 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,892 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,898 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,904 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-11-25 23:58:34,905 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:34,906 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:58:34,914 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 23:58:34,916 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-25 23:58:34,916 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:34,917 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:58:34,929 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-11-25 23:58:34,935 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-11-25 23:58:34,936 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:35,002 WARN L623 FunctionHandler]: Unknown extern function simple_strtoull [2022-11-25 23:58:35,007 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 23:58:35,019 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:35,020 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 23:58:35,022 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:58:35,023 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:35,156 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:58:35,179 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:35,188 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:35,205 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:35,210 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:58:35,212 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:58:35,219 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:58:35,681 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:35,888 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:58:36,368 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2022-11-25 23:58:36,372 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2022-11-25 23:58:36,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2022-11-25 23:58:36,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2022-11-25 23:58:36,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2022-11-25 23:58:36,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2022-11-25 23:58:36,375 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2022-11-25 23:58:36,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2022-11-25 23:58:36,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2022-11-25 23:58:36,377 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2022-11-25 23:58:36,377 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2022-11-25 23:58:36,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2022-11-25 23:58:36,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2022-11-25 23:58:36,379 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2022-11-25 23:58:36,379 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2022-11-25 23:58:36,380 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2022-11-25 23:58:36,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2022-11-25 23:58:36,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2022-11-25 23:58:36,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2022-11-25 23:58:36,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2022-11-25 23:58:36,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2022-11-25 23:58:36,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2022-11-25 23:58:36,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2022-11-25 23:58:36,385 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2022-11-25 23:58:36,385 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2022-11-25 23:58:36,386 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2022-11-25 23:58:36,387 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2022-11-25 23:58:36,387 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2022-11-25 23:58:36,388 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2022-11-25 23:58:36,388 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2022-11-25 23:58:36,389 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2022-11-25 23:58:36,389 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2022-11-25 23:58:36,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2022-11-25 23:58:36,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2022-11-25 23:58:36,391 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2022-11-25 23:58:36,392 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2022-11-25 23:58:36,392 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2022-11-25 23:58:36,393 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2022-11-25 23:58:36,393 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2022-11-25 23:58:36,394 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2022-11-25 23:58:36,395 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2022-11-25 23:58:36,395 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2022-11-25 23:58:36,396 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2022-11-25 23:58:36,396 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2022-11-25 23:58:36,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2022-11-25 23:58:36,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2022-11-25 23:58:36,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2022-11-25 23:58:36,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2022-11-25 23:58:36,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2022-11-25 23:58:36,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2022-11-25 23:58:36,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2022-11-25 23:58:36,401 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2022-11-25 23:58:36,401 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2022-11-25 23:58:36,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2022-11-25 23:58:36,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2022-11-25 23:58:36,403 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2022-11-25 23:58:36,403 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2022-11-25 23:58:36,404 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2022-11-25 23:58:36,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2022-11-25 23:58:36,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2022-11-25 23:58:36,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2022-11-25 23:58:36,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2022-11-25 23:58:36,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2022-11-25 23:58:36,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2022-11-25 23:58:36,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2022-11-25 23:58:36,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2022-11-25 23:58:36,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2022-11-25 23:58:36,410 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2022-11-25 23:58:36,410 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2022-11-25 23:58:36,411 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2022-11-25 23:58:36,411 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2022-11-25 23:58:36,412 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2022-11-25 23:58:36,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2022-11-25 23:58:36,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2022-11-25 23:58:36,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2022-11-25 23:58:36,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2022-11-25 23:58:36,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2022-11-25 23:58:36,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2022-11-25 23:58:36,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2022-11-25 23:58:36,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2022-11-25 23:58:36,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2022-11-25 23:58:36,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2022-11-25 23:58:36,418 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2022-11-25 23:58:36,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2022-11-25 23:58:36,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2022-11-25 23:58:36,420 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2022-11-25 23:58:36,420 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2022-11-25 23:58:36,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2022-11-25 23:58:36,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:58:36,469 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:58:36,622 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:58:36,624 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:58:36,632 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:58:36,634 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:58:36,638 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:36,638 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:36,639 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:36,640 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:58:36,640 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:36,641 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:36,642 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:36,642 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:58:36,667 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,668 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:36,674 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:36,676 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:58:36,677 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:36,678 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:58:36,679 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:36,681 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,683 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,688 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:36,689 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-25 23:58:36,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:36,698 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:36,699 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:36,700 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,703 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,704 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:58:36,705 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:36,705 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:58:36,707 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,809 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,809 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,810 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,812 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,812 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,813 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,814 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-11-25 23:58:36,814 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,815 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:58:36,817 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 23:58:36,817 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-25 23:58:36,818 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:36,818 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:58:36,820 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-11-25 23:58:36,821 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-11-25 23:58:36,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:36,829 WARN L623 FunctionHandler]: Unknown extern function simple_strtoull [2022-11-25 23:58:36,831 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 23:58:36,832 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:58:36,833 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 23:58:36,833 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:58:36,834 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:58:36,842 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-25 23:58:36,849 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:36,851 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:36,854 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:36,855 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:58:36,856 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:58:36,857 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:58:36,873 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:36,882 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:58:36,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2022-11-25 23:58:36,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2022-11-25 23:58:36,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2022-11-25 23:58:36,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2022-11-25 23:58:36,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2022-11-25 23:58:36,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2022-11-25 23:58:36,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2022-11-25 23:58:36,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2022-11-25 23:58:36,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2022-11-25 23:58:36,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2022-11-25 23:58:36,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2022-11-25 23:58:36,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2022-11-25 23:58:36,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2022-11-25 23:58:36,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2022-11-25 23:58:36,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2022-11-25 23:58:36,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2022-11-25 23:58:36,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2022-11-25 23:58:36,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2022-11-25 23:58:36,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2022-11-25 23:58:36,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2022-11-25 23:58:36,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2022-11-25 23:58:36,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2022-11-25 23:58:36,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2022-11-25 23:58:36,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2022-11-25 23:58:36,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2022-11-25 23:58:36,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2022-11-25 23:58:36,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2022-11-25 23:58:36,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2022-11-25 23:58:36,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2022-11-25 23:58:36,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2022-11-25 23:58:36,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2022-11-25 23:58:36,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2022-11-25 23:58:36,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2022-11-25 23:58:36,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2022-11-25 23:58:36,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2022-11-25 23:58:36,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2022-11-25 23:58:36,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2022-11-25 23:58:36,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2022-11-25 23:58:36,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2022-11-25 23:58:36,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2022-11-25 23:58:36,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2022-11-25 23:58:36,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2022-11-25 23:58:36,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2022-11-25 23:58:36,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2022-11-25 23:58:36,932 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2022-11-25 23:58:36,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2022-11-25 23:58:36,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2022-11-25 23:58:36,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2022-11-25 23:58:36,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2022-11-25 23:58:36,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2022-11-25 23:58:36,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2022-11-25 23:58:36,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2022-11-25 23:58:36,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2022-11-25 23:58:36,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2022-11-25 23:58:36,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2022-11-25 23:58:36,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2022-11-25 23:58:36,941 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2022-11-25 23:58:36,943 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2022-11-25 23:58:36,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2022-11-25 23:58:36,948 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2022-11-25 23:58:36,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2022-11-25 23:58:36,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2022-11-25 23:58:36,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2022-11-25 23:58:36,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2022-11-25 23:58:36,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2022-11-25 23:58:36,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2022-11-25 23:58:36,958 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2022-11-25 23:58:36,959 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2022-11-25 23:58:36,963 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2022-11-25 23:58:36,963 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2022-11-25 23:58:36,964 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2022-11-25 23:58:36,964 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2022-11-25 23:58:36,965 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2022-11-25 23:58:36,965 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2022-11-25 23:58:36,965 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2022-11-25 23:58:36,966 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2022-11-25 23:58:36,966 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2022-11-25 23:58:36,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2022-11-25 23:58:36,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2022-11-25 23:58:36,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2022-11-25 23:58:36,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2022-11-25 23:58:36,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2022-11-25 23:58:36,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2022-11-25 23:58:36,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2022-11-25 23:58:36,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2022-11-25 23:58:36,970 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2022-11-25 23:58:36,970 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2022-11-25 23:58:36,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2022-11-25 23:58:36,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:58:37,152 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:58:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37 WrapperNode [2022-11-25 23:58:37,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:58:37,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:58:37,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:58:37,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:58:37,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,504 INFO L138 Inliner]: procedures = 508, calls = 1239, calls flagged for inlining = 228, calls inlined = 154, statements flattened = 2686 [2022-11-25 23:58:37,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:58:37,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:58:37,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:58:37,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:58:37,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:58:37,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:58:37,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:58:37,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:58:37,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (1/1) ... [2022-11-25 23:58:37,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:58:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:58:37,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:58:37,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:58:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:58:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:58:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:58:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:58:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:58:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:58:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:58:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:58:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-25 23:58:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-25 23:58:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2022-11-25 23:58:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2022-11-25 23:58:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:58:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:58:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:58:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:58:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:58:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:58:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:58:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 23:58:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 23:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 23:58:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 23:58:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:58:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:58:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:58:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:58:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:58:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 23:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 23:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:58:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 23:58:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 23:58:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 23:58:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 23:58:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:58:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-25 23:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-25 23:58:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:58:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:58:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:58:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:58:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-25 23:58:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-25 23:58:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:58:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:58:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-25 23:58:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-25 23:58:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2022-11-25 23:58:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2022-11-25 23:58:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:58:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:58:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 23:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 23:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-25 23:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-25 23:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:58:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:58:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 23:58:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 23:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:58:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-25 23:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-25 23:58:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:58:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-25 23:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-25 23:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_101 [2022-11-25 23:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_101 [2022-11-25 23:58:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:58:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 23:58:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 23:58:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:58:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:58:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 23:58:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 23:58:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:58:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:58:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:58:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:58:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-25 23:58:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-25 23:58:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-25 23:58:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-25 23:58:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:58:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:58:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:58:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:58:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:58:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:58:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:58:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 23:58:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 23:58:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:58:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:58:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2022-11-25 23:58:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2022-11-25 23:58:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:58:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:58:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:58:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:58:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-11-25 23:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-11-25 23:58:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:58:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:58:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:58:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 23:58:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 23:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:58:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:58:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:58:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure yurex_disconnect [2022-11-25 23:58:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure yurex_disconnect [2022-11-25 23:58:38,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:58:38,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:58:39,235 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:58:43,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:58:43,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:58:43,866 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:58:43,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:58:43 BoogieIcfgContainer [2022-11-25 23:58:43,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:58:43,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:58:43,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:58:43,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:58:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:58:32" (1/3) ... [2022-11-25 23:58:43,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c188959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:58:43, skipping insertion in model container [2022-11-25 23:58:43,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:37" (2/3) ... [2022-11-25 23:58:43,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c188959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:58:43, skipping insertion in model container [2022-11-25 23:58:43,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:58:43" (3/3) ... [2022-11-25 23:58:43,887 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2022-11-25 23:58:43,911 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:58:43,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-25 23:58:44,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:58:44,033 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;@5ca0ac87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:58:44,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-25 23:58:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 752 states, 427 states have (on average 1.3583138173302107) internal successors, (580), 478 states have internal predecessors, (580), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2022-11-25 23:58:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:58:44,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:44,059 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] [2022-11-25 23:58:44,060 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 31 more)] === [2022-11-25 23:58:44,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1639760391, now seen corresponding path program 1 times [2022-11-25 23:58:44,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:44,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664654624] [2022-11-25 23:58:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:58:45,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:45,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664654624] [2022-11-25 23:58:45,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664654624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:45,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:45,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378608149] [2022-11-25 23:58:45,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:45,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:45,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:45,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:45,367 INFO L87 Difference]: Start difference. First operand has 752 states, 427 states have (on average 1.3583138173302107) internal successors, (580), 478 states have internal predecessors, (580), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) 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) [2022-11-25 23:58:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:48,305 INFO L93 Difference]: Finished difference Result 1465 states and 2075 transitions. [2022-11-25 23:58:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:58:48,308 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 [2022-11-25 23:58:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:48,333 INFO L225 Difference]: With dead ends: 1465 [2022-11-25 23:58:48,333 INFO L226 Difference]: Without dead ends: 737 [2022-11-25 23:58:48,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:48,349 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 965 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:48,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 1718 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 23:58:48,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-25 23:58:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2022-11-25 23:58:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 420 states have (on average 1.2714285714285714) internal successors, (534), 466 states have internal predecessors, (534), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-25 23:58:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 970 transitions. [2022-11-25 23:58:48,482 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 970 transitions. Word has length 51 [2022-11-25 23:58:48,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:48,484 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 970 transitions. [2022-11-25 23:58:48,485 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) [2022-11-25 23:58:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 970 transitions. [2022-11-25 23:58:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 23:58:48,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:48,488 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] [2022-11-25 23:58:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:58:48,489 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 31 more)] === [2022-11-25 23:58:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash -804848475, now seen corresponding path program 1 times [2022-11-25 23:58:48,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:48,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950011925] [2022-11-25 23:58:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:58:49,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:49,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950011925] [2022-11-25 23:58:49,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950011925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:49,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:49,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828529861] [2022-11-25 23:58:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:49,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:49,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:49,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:49,104 INFO L87 Difference]: Start difference. First operand 737 states and 970 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) [2022-11-25 23:58:52,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:54,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:54,122 INFO L93 Difference]: Finished difference Result 737 states and 970 transitions. [2022-11-25 23:58:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:58:54,123 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 [2022-11-25 23:58:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:54,130 INFO L225 Difference]: With dead ends: 737 [2022-11-25 23:58:54,130 INFO L226 Difference]: Without dead ends: 735 [2022-11-25 23:58:54,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:54,132 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 945 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:54,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1682 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 23:58:54,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-25 23:58:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2022-11-25 23:58:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 419 states have (on average 1.269689737470167) internal successors, (532), 464 states have internal predecessors, (532), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2022-11-25 23:58:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 968 transitions. [2022-11-25 23:58:54,209 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 968 transitions. Word has length 56 [2022-11-25 23:58:54,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:54,210 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 968 transitions. [2022-11-25 23:58:54,210 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) [2022-11-25 23:58:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 968 transitions. [2022-11-25 23:58:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 23:58:54,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:54,213 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] [2022-11-25 23:58:54,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:58:54,214 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 31 more)] === [2022-11-25 23:58:54,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1845419231, now seen corresponding path program 1 times [2022-11-25 23:58:54,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:54,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076898854] [2022-11-25 23:58:54,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:54,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:58:54,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:54,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076898854] [2022-11-25 23:58:54,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076898854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:54,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:54,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031905486] [2022-11-25 23:58:54,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:54,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:54,567 INFO L87 Difference]: Start difference. First operand 735 states and 968 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) [2022-11-25 23:58:58,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:59,283 INFO L93 Difference]: Finished difference Result 1347 states and 1751 transitions. [2022-11-25 23:58:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:59,284 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 [2022-11-25 23:58:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:59,294 INFO L225 Difference]: With dead ends: 1347 [2022-11-25 23:58:59,294 INFO L226 Difference]: Without dead ends: 1345 [2022-11-25 23:58:59,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:59,296 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 930 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:59,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 2698 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 23:58:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-11-25 23:58:59,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1183. [2022-11-25 23:58:59,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 691 states have (on average 1.2793053545586106) internal successors, (884), 749 states have internal predecessors, (884), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:58:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1584 transitions. [2022-11-25 23:58:59,476 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1584 transitions. Word has length 61 [2022-11-25 23:58:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:59,476 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1584 transitions. [2022-11-25 23:58:59,477 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) [2022-11-25 23:58:59,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1584 transitions. [2022-11-25 23:58:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:58:59,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:59,480 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] [2022-11-25 23:58:59,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:58:59,480 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 31 more)] === [2022-11-25 23:58:59,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1951740751, now seen corresponding path program 1 times [2022-11-25 23:58:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:59,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679403771] [2022-11-25 23:58:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:58:59,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679403771] [2022-11-25 23:58:59,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679403771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:59,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:59,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139373318] [2022-11-25 23:58:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:59,881 INFO L87 Difference]: Start difference. First operand 1183 states and 1584 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) [2022-11-25 23:59:03,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:03,216 INFO L93 Difference]: Finished difference Result 1183 states and 1584 transitions. [2022-11-25 23:59:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:03,217 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 [2022-11-25 23:59:03,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:03,226 INFO L225 Difference]: With dead ends: 1183 [2022-11-25 23:59:03,227 INFO L226 Difference]: Without dead ends: 1181 [2022-11-25 23:59:03,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:03,229 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 941 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:03,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1678 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 23:59:03,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-11-25 23:59:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2022-11-25 23:59:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 690 states have (on average 1.2782608695652173) internal successors, (882), 747 states have internal predecessors, (882), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1582 transitions. [2022-11-25 23:59:03,380 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1582 transitions. Word has length 66 [2022-11-25 23:59:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:03,381 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1582 transitions. [2022-11-25 23:59:03,381 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) [2022-11-25 23:59:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1582 transitions. [2022-11-25 23:59:03,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 23:59:03,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:03,384 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] [2022-11-25 23:59:03,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:59:03,384 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 31 more)] === [2022-11-25 23:59:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash -490827480, now seen corresponding path program 1 times [2022-11-25 23:59:03,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:03,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318615987] [2022-11-25 23:59:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:03,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:03,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:03,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318615987] [2022-11-25 23:59:03,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318615987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:03,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:03,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204054520] [2022-11-25 23:59:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:03,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:03,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:03,764 INFO L87 Difference]: Start difference. First operand 1181 states and 1582 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) [2022-11-25 23:59:07,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:08,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:08,219 INFO L93 Difference]: Finished difference Result 1181 states and 1582 transitions. [2022-11-25 23:59:08,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:08,220 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 [2022-11-25 23:59:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:08,230 INFO L225 Difference]: With dead ends: 1181 [2022-11-25 23:59:08,230 INFO L226 Difference]: Without dead ends: 1179 [2022-11-25 23:59:08,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:08,232 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 938 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:08,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1674 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 23:59:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2022-11-25 23:59:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1179. [2022-11-25 23:59:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 689 states have (on average 1.2772133526850509) internal successors, (880), 745 states have internal predecessors, (880), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:08,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1580 transitions. [2022-11-25 23:59:08,348 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1580 transitions. Word has length 71 [2022-11-25 23:59:08,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:08,348 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 1580 transitions. [2022-11-25 23:59:08,349 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) [2022-11-25 23:59:08,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1580 transitions. [2022-11-25 23:59:08,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 23:59:08,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:08,351 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] [2022-11-25 23:59:08,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:59:08,351 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 31 more)] === [2022-11-25 23:59:08,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:08,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1090178339, now seen corresponding path program 1 times [2022-11-25 23:59:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:08,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882918705] [2022-11-25 23:59:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:08,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:08,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882918705] [2022-11-25 23:59:08,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882918705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:08,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:08,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:08,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974278980] [2022-11-25 23:59:08,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:08,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:08,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:08,707 INFO L87 Difference]: Start difference. First operand 1179 states and 1580 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) [2022-11-25 23:59:12,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:13,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:13,422 INFO L93 Difference]: Finished difference Result 1179 states and 1580 transitions. [2022-11-25 23:59:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:13,423 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 [2022-11-25 23:59:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:13,431 INFO L225 Difference]: With dead ends: 1179 [2022-11-25 23:59:13,432 INFO L226 Difference]: Without dead ends: 1177 [2022-11-25 23:59:13,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:13,434 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 935 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:13,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1670 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:59:13,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-11-25 23:59:13,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2022-11-25 23:59:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 688 states have (on average 1.2761627906976745) internal successors, (878), 743 states have internal predecessors, (878), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1578 transitions. [2022-11-25 23:59:13,559 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1578 transitions. Word has length 76 [2022-11-25 23:59:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:13,559 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1578 transitions. [2022-11-25 23:59:13,560 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) [2022-11-25 23:59:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1578 transitions. [2022-11-25 23:59:13,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:59:13,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:13,563 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] [2022-11-25 23:59:13,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:59:13,563 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 31 more)] === [2022-11-25 23:59:13,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1311956910, now seen corresponding path program 1 times [2022-11-25 23:59:13,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:13,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824844123] [2022-11-25 23:59:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:13,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:13,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:13,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824844123] [2022-11-25 23:59:13,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824844123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:13,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:13,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:13,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096366438] [2022-11-25 23:59:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:13,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:13,922 INFO L87 Difference]: Start difference. First operand 1177 states and 1578 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) [2022-11-25 23:59:17,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:18,950 INFO L93 Difference]: Finished difference Result 1177 states and 1578 transitions. [2022-11-25 23:59:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:18,951 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 [2022-11-25 23:59:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:18,959 INFO L225 Difference]: With dead ends: 1177 [2022-11-25 23:59:18,959 INFO L226 Difference]: Without dead ends: 1175 [2022-11-25 23:59:18,960 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 [2022-11-25 23:59:18,961 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 932 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:18,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1666 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 23:59:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-25 23:59:19,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2022-11-25 23:59:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 687 states have (on average 1.275109170305677) internal successors, (876), 741 states have internal predecessors, (876), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1576 transitions. [2022-11-25 23:59:19,088 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1576 transitions. Word has length 81 [2022-11-25 23:59:19,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:19,089 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1576 transitions. [2022-11-25 23:59:19,089 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) [2022-11-25 23:59:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1576 transitions. [2022-11-25 23:59:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 23:59:19,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:19,091 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] [2022-11-25 23:59:19,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:59:19,092 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 31 more)] === [2022-11-25 23:59:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:19,093 INFO L85 PathProgramCache]: Analyzing trace with hash 309705656, now seen corresponding path program 1 times [2022-11-25 23:59:19,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:19,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606123158] [2022-11-25 23:59:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:19,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:19,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:19,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606123158] [2022-11-25 23:59:19,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606123158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:19,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:19,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:19,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181247531] [2022-11-25 23:59:19,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:19,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:19,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:19,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:19,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:19,445 INFO L87 Difference]: Start difference. First operand 1175 states and 1576 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) [2022-11-25 23:59:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:23,468 INFO L93 Difference]: Finished difference Result 1175 states and 1576 transitions. [2022-11-25 23:59:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:23,469 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 [2022-11-25 23:59:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:23,476 INFO L225 Difference]: With dead ends: 1175 [2022-11-25 23:59:23,476 INFO L226 Difference]: Without dead ends: 1173 [2022-11-25 23:59:23,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:23,478 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 933 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:23,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 23:59:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-11-25 23:59:23,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2022-11-25 23:59:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 686 states have (on average 1.2740524781341107) internal successors, (874), 739 states have internal predecessors, (874), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1574 transitions. [2022-11-25 23:59:23,605 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1574 transitions. Word has length 86 [2022-11-25 23:59:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:23,606 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 1574 transitions. [2022-11-25 23:59:23,606 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) [2022-11-25 23:59:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1574 transitions. [2022-11-25 23:59:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 23:59:23,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:23,608 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] [2022-11-25 23:59:23,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:59:23,608 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 31 more)] === [2022-11-25 23:59:23,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1274535387, now seen corresponding path program 1 times [2022-11-25 23:59:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:23,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017835379] [2022-11-25 23:59:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:23,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:23,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:23,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017835379] [2022-11-25 23:59:23,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017835379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:23,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:23,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:23,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088628200] [2022-11-25 23:59:23,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:23,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:23,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:23,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:23,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:23,916 INFO L87 Difference]: Start difference. First operand 1173 states and 1574 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) [2022-11-25 23:59:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:27,243 INFO L93 Difference]: Finished difference Result 1173 states and 1574 transitions. [2022-11-25 23:59:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:27,244 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 [2022-11-25 23:59:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:27,252 INFO L225 Difference]: With dead ends: 1173 [2022-11-25 23:59:27,252 INFO L226 Difference]: Without dead ends: 1171 [2022-11-25 23:59:27,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:27,254 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 925 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:27,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 23:59:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2022-11-25 23:59:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2022-11-25 23:59:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 685 states have (on average 1.272992700729927) internal successors, (872), 737 states have internal predecessors, (872), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1572 transitions. [2022-11-25 23:59:27,384 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1572 transitions. Word has length 88 [2022-11-25 23:59:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:27,385 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1572 transitions. [2022-11-25 23:59:27,385 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) [2022-11-25 23:59:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1572 transitions. [2022-11-25 23:59:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 23:59:27,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:27,387 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] [2022-11-25 23:59:27,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:59:27,387 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 31 more)] === [2022-11-25 23:59:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash 727845424, now seen corresponding path program 1 times [2022-11-25 23:59:27,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:27,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095132299] [2022-11-25 23:59:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:27,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:27,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:27,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095132299] [2022-11-25 23:59:27,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095132299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:27,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:27,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:27,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366145211] [2022-11-25 23:59:27,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:27,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:27,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:27,675 INFO L87 Difference]: Start difference. First operand 1171 states and 1572 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) [2022-11-25 23:59:31,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:31,885 INFO L93 Difference]: Finished difference Result 1171 states and 1572 transitions. [2022-11-25 23:59:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:31,886 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 [2022-11-25 23:59:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:31,893 INFO L225 Difference]: With dead ends: 1171 [2022-11-25 23:59:31,894 INFO L226 Difference]: Without dead ends: 1169 [2022-11-25 23:59:31,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:31,896 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 924 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:31,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1654 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 23:59:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-11-25 23:59:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2022-11-25 23:59:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 684 states have (on average 1.2719298245614035) internal successors, (870), 735 states have internal predecessors, (870), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1570 transitions. [2022-11-25 23:59:32,035 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1570 transitions. Word has length 93 [2022-11-25 23:59:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:32,035 INFO L495 AbstractCegarLoop]: Abstraction has 1169 states and 1570 transitions. [2022-11-25 23:59:32,036 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) [2022-11-25 23:59:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1570 transitions. [2022-11-25 23:59:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 23:59:32,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:32,038 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] [2022-11-25 23:59:32,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:59:32,038 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 23:59:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1840570112, now seen corresponding path program 1 times [2022-11-25 23:59:32,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:32,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827246296] [2022-11-25 23:59:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:32,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:32,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827246296] [2022-11-25 23:59:32,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827246296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:32,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:32,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:32,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828409452] [2022-11-25 23:59:32,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:32,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:32,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:32,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:32,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:32,353 INFO L87 Difference]: Start difference. First operand 1169 states and 1570 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) [2022-11-25 23:59:36,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:38,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:38,219 INFO L93 Difference]: Finished difference Result 1169 states and 1570 transitions. [2022-11-25 23:59:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:38,220 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 [2022-11-25 23:59:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:38,227 INFO L225 Difference]: With dead ends: 1169 [2022-11-25 23:59:38,227 INFO L226 Difference]: Without dead ends: 1167 [2022-11-25 23:59:38,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:38,229 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 921 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:38,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1650 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 23:59:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-11-25 23:59:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2022-11-25 23:59:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 683 states have (on average 1.2708638360175695) internal successors, (868), 733 states have internal predecessors, (868), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1568 transitions. [2022-11-25 23:59:38,382 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1568 transitions. Word has length 98 [2022-11-25 23:59:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:38,383 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 1568 transitions. [2022-11-25 23:59:38,383 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) [2022-11-25 23:59:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1568 transitions. [2022-11-25 23:59:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 23:59:38,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:38,385 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] [2022-11-25 23:59:38,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:59:38,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 31 more)] === [2022-11-25 23:59:38,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash 213969071, now seen corresponding path program 1 times [2022-11-25 23:59:38,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712637283] [2022-11-25 23:59:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:38,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-25 23:59:39,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712637283] [2022-11-25 23:59:39,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712637283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:39,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:39,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:59:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535951953] [2022-11-25 23:59:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:39,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:59:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:39,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:59:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:59:39,416 INFO L87 Difference]: Start difference. First operand 1167 states and 1568 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:59:46,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:47,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:47,279 INFO L93 Difference]: Finished difference Result 1167 states and 1568 transitions. [2022-11-25 23:59:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:59:47,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2022-11-25 23:59:47,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:47,286 INFO L225 Difference]: With dead ends: 1167 [2022-11-25 23:59:47,286 INFO L226 Difference]: Without dead ends: 1165 [2022-11-25 23:59:47,287 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 [2022-11-25 23:59:47,288 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 914 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:47,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2859 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-25 23:59:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2022-11-25 23:59:47,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1165. [2022-11-25 23:59:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 682 states have (on average 1.2683284457478006) internal successors, (865), 731 states have internal predecessors, (865), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1565 transitions. [2022-11-25 23:59:47,433 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1565 transitions. Word has length 129 [2022-11-25 23:59:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:47,433 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1565 transitions. [2022-11-25 23:59:47,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:59:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1565 transitions. [2022-11-25 23:59:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 23:59:47,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:47,436 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] [2022-11-25 23:59:47,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:59:47,436 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 31 more)] === [2022-11-25 23:59:47,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1131224257, now seen corresponding path program 1 times [2022-11-25 23:59:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:47,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344316709] [2022-11-25 23:59:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:47,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:47,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344316709] [2022-11-25 23:59:47,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344316709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:47,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:47,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:47,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904453460] [2022-11-25 23:59:47,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:47,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:47,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:47,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:47,833 INFO L87 Difference]: Start difference. First operand 1165 states and 1565 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) [2022-11-25 23:59:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:51,601 INFO L93 Difference]: Finished difference Result 1165 states and 1565 transitions. [2022-11-25 23:59:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:51,602 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 [2022-11-25 23:59:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:51,608 INFO L225 Difference]: With dead ends: 1165 [2022-11-25 23:59:51,608 INFO L226 Difference]: Without dead ends: 1163 [2022-11-25 23:59:51,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:51,610 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 916 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:51,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1642 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 23:59:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-11-25 23:59:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2022-11-25 23:59:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 681 states have (on average 1.2672540381791484) internal successors, (863), 729 states have internal predecessors, (863), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1563 transitions. [2022-11-25 23:59:51,787 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1563 transitions. Word has length 103 [2022-11-25 23:59:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:51,787 INFO L495 AbstractCegarLoop]: Abstraction has 1163 states and 1563 transitions. [2022-11-25 23:59:51,788 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) [2022-11-25 23:59:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1563 transitions. [2022-11-25 23:59:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 23:59:51,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:51,790 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:51,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:59:51,790 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 31 more)] === [2022-11-25 23:59:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 265518949, now seen corresponding path program 1 times [2022-11-25 23:59:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:51,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722674777] [2022-11-25 23:59:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-25 23:59:52,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:52,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722674777] [2022-11-25 23:59:52,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722674777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:52,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:52,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:52,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762878894] [2022-11-25 23:59:52,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:52,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:52,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:52,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:52,072 INFO L87 Difference]: Start difference. First operand 1163 states and 1563 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 23:59:54,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:54,596 INFO L93 Difference]: Finished difference Result 2287 states and 3094 transitions. [2022-11-25 23:59:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-11-25 23:59:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:54,605 INFO L225 Difference]: With dead ends: 2287 [2022-11-25 23:59:54,605 INFO L226 Difference]: Without dead ends: 1157 [2022-11-25 23:59:54,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:54,609 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 910 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:54,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 817 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 23:59:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-11-25 23:59:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2022-11-25 23:59:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 676 states have (on average 1.2633136094674555) internal successors, (854), 723 states have internal predecessors, (854), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-25 23:59:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1554 transitions. [2022-11-25 23:59:54,761 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1554 transitions. Word has length 135 [2022-11-25 23:59:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:54,761 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1554 transitions. [2022-11-25 23:59:54,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 23:59:54,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1554 transitions. [2022-11-25 23:59:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:59:54,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:54,764 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] [2022-11-25 23:59:54,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:59:54,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-25 23:59:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1010319002, now seen corresponding path program 1 times [2022-11-25 23:59:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:54,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53814726] [2022-11-25 23:59:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 23:59:55,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53814726] [2022-11-25 23:59:55,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53814726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:55,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:55,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812925560] [2022-11-25 23:59:55,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:55,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:55,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:55,037 INFO L87 Difference]: Start difference. First operand 1157 states and 1554 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) [2022-11-25 23:59:59,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:00,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:00,231 INFO L93 Difference]: Finished difference Result 1157 states and 1554 transitions. [2022-11-26 00:00:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:00,232 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 [2022-11-26 00:00:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:00,239 INFO L225 Difference]: With dead ends: 1157 [2022-11-26 00:00:00,239 INFO L226 Difference]: Without dead ends: 1155 [2022-11-26 00:00:00,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:00,241 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 908 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:00,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1628 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:00:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-11-26 00:00:00,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2022-11-26 00:00:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 675 states have (on average 1.2622222222222221) internal successors, (852), 721 states have internal predecessors, (852), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-26 00:00:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1552 transitions. [2022-11-26 00:00:00,436 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1552 transitions. Word has length 108 [2022-11-26 00:00:00,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:00,438 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1552 transitions. [2022-11-26 00:00:00,439 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) [2022-11-26 00:00:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1552 transitions. [2022-11-26 00:00:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-26 00:00:00,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:00,442 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] [2022-11-26 00:00:00,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:00:00,443 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:00:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1857755564, now seen corresponding path program 1 times [2022-11-26 00:00:00,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:00,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864433436] [2022-11-26 00:00:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:00,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:00,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864433436] [2022-11-26 00:00:00,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864433436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:00,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:00,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:00,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293497302] [2022-11-26 00:00:00,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:00,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:00,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:00,770 INFO L87 Difference]: Start difference. First operand 1155 states and 1552 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) [2022-11-26 00:00:05,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:05,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:05,698 INFO L93 Difference]: Finished difference Result 1155 states and 1552 transitions. [2022-11-26 00:00:05,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:05,699 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 [2022-11-26 00:00:05,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:05,703 INFO L225 Difference]: With dead ends: 1155 [2022-11-26 00:00:05,703 INFO L226 Difference]: Without dead ends: 1153 [2022-11-26 00:00:05,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:05,705 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 905 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:05,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 1624 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:00:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-11-26 00:00:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2022-11-26 00:00:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 674 states have (on average 1.261127596439169) internal successors, (850), 719 states have internal predecessors, (850), 351 states have call successors, (351), 111 states have call predecessors, (351), 110 states have return successors, (349), 341 states have call predecessors, (349), 349 states have call successors, (349) [2022-11-26 00:00:05,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1550 transitions. [2022-11-26 00:00:05,921 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1550 transitions. Word has length 113 [2022-11-26 00:00:05,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:05,922 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1550 transitions. [2022-11-26 00:00:05,922 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) [2022-11-26 00:00:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1550 transitions. [2022-11-26 00:00:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-26 00:00:05,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:05,925 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] [2022-11-26 00:00:05,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:00:05,926 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 31 more)] === [2022-11-26 00:00:05,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:05,926 INFO L85 PathProgramCache]: Analyzing trace with hash 254454241, now seen corresponding path program 1 times [2022-11-26 00:00:05,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:05,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908585281] [2022-11-26 00:00:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:06,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:06,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908585281] [2022-11-26 00:00:06,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908585281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:06,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:06,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777257545] [2022-11-26 00:00:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:06,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:06,272 INFO L87 Difference]: Start difference. First operand 1153 states and 1550 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) [2022-11-26 00:00:10,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:11,332 INFO L93 Difference]: Finished difference Result 1289 states and 1691 transitions. [2022-11-26 00:00:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:11,333 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 [2022-11-26 00:00:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:11,340 INFO L225 Difference]: With dead ends: 1289 [2022-11-26 00:00:11,340 INFO L226 Difference]: Without dead ends: 1287 [2022-11-26 00:00:11,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:11,342 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 888 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:11,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 2611 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:00:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-11-26 00:00:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1221. [2022-11-26 00:00:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 709 states have (on average 1.2482369534555713) internal successors, (885), 754 states have internal predecessors, (885), 373 states have call successors, (373), 122 states have call predecessors, (373), 121 states have return successors, (371), 363 states have call predecessors, (371), 371 states have call successors, (371) [2022-11-26 00:00:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1629 transitions. [2022-11-26 00:00:11,539 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1629 transitions. Word has length 118 [2022-11-26 00:00:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:11,539 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 1629 transitions. [2022-11-26 00:00:11,539 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) [2022-11-26 00:00:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1629 transitions. [2022-11-26 00:00:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-26 00:00:11,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:11,543 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:11,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:00:11,543 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 31 more)] === [2022-11-26 00:00:11,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:11,544 INFO L85 PathProgramCache]: Analyzing trace with hash 459898088, now seen corresponding path program 1 times [2022-11-26 00:00:11,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:11,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960846122] [2022-11-26 00:00:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-11-26 00:00:12,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:12,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960846122] [2022-11-26 00:00:12,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960846122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:12,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:12,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:12,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722601175] [2022-11-26 00:00:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:12,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:12,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:12,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:12,271 INFO L87 Difference]: Start difference. First operand 1221 states and 1629 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:00:17,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:19,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:19,554 INFO L93 Difference]: Finished difference Result 2403 states and 3226 transitions. [2022-11-26 00:00:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2022-11-26 00:00:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:19,563 INFO L225 Difference]: With dead ends: 2403 [2022-11-26 00:00:19,563 INFO L226 Difference]: Without dead ends: 1491 [2022-11-26 00:00:19,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:19,568 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 98 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3525 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:19,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3525 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-26 00:00:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-11-26 00:00:19,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1229. [2022-11-26 00:00:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 715 states have (on average 1.2461538461538462) internal successors, (891), 760 states have internal predecessors, (891), 373 states have call successors, (373), 122 states have call predecessors, (373), 123 states have return successors, (376), 365 states have call predecessors, (376), 371 states have call successors, (376) [2022-11-26 00:00:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1640 transitions. [2022-11-26 00:00:19,843 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1640 transitions. Word has length 142 [2022-11-26 00:00:19,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:19,844 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 1640 transitions. [2022-11-26 00:00:19,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:00:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1640 transitions. [2022-11-26 00:00:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-26 00:00:19,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:19,847 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] [2022-11-26 00:00:19,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:00:19,849 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:00:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1486194621, now seen corresponding path program 1 times [2022-11-26 00:00:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:19,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653158864] [2022-11-26 00:00:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:19,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:20,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:20,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653158864] [2022-11-26 00:00:20,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653158864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:20,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:20,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:20,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590562438] [2022-11-26 00:00:20,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:20,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:20,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:20,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:20,572 INFO L87 Difference]: Start difference. First operand 1229 states and 1640 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) [2022-11-26 00:00:24,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:24,422 INFO L93 Difference]: Finished difference Result 1229 states and 1640 transitions. [2022-11-26 00:00:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:24,423 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 [2022-11-26 00:00:24,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:24,429 INFO L225 Difference]: With dead ends: 1229 [2022-11-26 00:00:24,429 INFO L226 Difference]: Without dead ends: 1227 [2022-11-26 00:00:24,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:24,431 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 901 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:24,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1620 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-26 00:00:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-11-26 00:00:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2022-11-26 00:00:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 714 states have (on average 1.2450980392156863) internal successors, (889), 758 states have internal predecessors, (889), 373 states have call successors, (373), 122 states have call predecessors, (373), 123 states have return successors, (376), 365 states have call predecessors, (376), 371 states have call successors, (376) [2022-11-26 00:00:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1638 transitions. [2022-11-26 00:00:24,702 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1638 transitions. Word has length 123 [2022-11-26 00:00:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:24,703 INFO L495 AbstractCegarLoop]: Abstraction has 1227 states and 1638 transitions. [2022-11-26 00:00:24,703 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) [2022-11-26 00:00:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1638 transitions. [2022-11-26 00:00:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-26 00:00:24,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:24,707 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] [2022-11-26 00:00:24,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:00:24,707 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 31 more)] === [2022-11-26 00:00:24,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash 952980902, now seen corresponding path program 1 times [2022-11-26 00:00:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:24,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613638325] [2022-11-26 00:00:24,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:25,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:25,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613638325] [2022-11-26 00:00:25,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613638325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:25,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:25,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:25,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752628898] [2022-11-26 00:00:25,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:25,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:25,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:25,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:25,027 INFO L87 Difference]: Start difference. First operand 1227 states and 1638 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) [2022-11-26 00:00:29,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:29,355 INFO L93 Difference]: Finished difference Result 1227 states and 1638 transitions. [2022-11-26 00:00:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:29,356 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 [2022-11-26 00:00:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:29,362 INFO L225 Difference]: With dead ends: 1227 [2022-11-26 00:00:29,363 INFO L226 Difference]: Without dead ends: 1225 [2022-11-26 00:00:29,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:29,364 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 898 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:29,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 1616 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-26 00:00:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-11-26 00:00:29,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2022-11-26 00:00:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 713 states have (on average 1.244039270687237) internal successors, (887), 756 states have internal predecessors, (887), 373 states have call successors, (373), 122 states have call predecessors, (373), 123 states have return successors, (376), 365 states have call predecessors, (376), 371 states have call successors, (376) [2022-11-26 00:00:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1636 transitions. [2022-11-26 00:00:29,652 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1636 transitions. Word has length 128 [2022-11-26 00:00:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:29,652 INFO L495 AbstractCegarLoop]: Abstraction has 1225 states and 1636 transitions. [2022-11-26 00:00:29,652 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) [2022-11-26 00:00:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1636 transitions. [2022-11-26 00:00:29,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-26 00:00:29,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:29,656 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:29,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:00:29,657 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:00:29,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1092010256, now seen corresponding path program 1 times [2022-11-26 00:00:29,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:29,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055492823] [2022-11-26 00:00:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:29,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-26 00:00:29,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:29,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055492823] [2022-11-26 00:00:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055492823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:29,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:29,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:00:29,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988258754] [2022-11-26 00:00:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:29,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:00:29,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:29,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:00:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:29,901 INFO L87 Difference]: Start difference. First operand 1225 states and 1636 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-26 00:00:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:32,110 INFO L93 Difference]: Finished difference Result 2309 states and 3059 transitions. [2022-11-26 00:00:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:00:32,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 158 [2022-11-26 00:00:32,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:32,118 INFO L225 Difference]: With dead ends: 2309 [2022-11-26 00:00:32,118 INFO L226 Difference]: Without dead ends: 1219 [2022-11-26 00:00:32,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:32,123 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 914 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:32,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 804 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:00:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2022-11-26 00:00:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2022-11-26 00:00:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 708 states have (on average 1.2401129943502824) internal successors, (878), 750 states have internal predecessors, (878), 373 states have call successors, (373), 122 states have call predecessors, (373), 123 states have return successors, (376), 365 states have call predecessors, (376), 371 states have call successors, (376) [2022-11-26 00:00:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1627 transitions. [2022-11-26 00:00:32,385 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1627 transitions. Word has length 158 [2022-11-26 00:00:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:32,385 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 1627 transitions. [2022-11-26 00:00:32,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-26 00:00:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1627 transitions. [2022-11-26 00:00:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-26 00:00:32,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:32,389 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] [2022-11-26 00:00:32,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:00:32,389 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 31 more)] === [2022-11-26 00:00:32,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:32,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2133883682, now seen corresponding path program 1 times [2022-11-26 00:00:32,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:32,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056166647] [2022-11-26 00:00:32,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:32,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-26 00:00:33,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056166647] [2022-11-26 00:00:33,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056166647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:33,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:33,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086132927] [2022-11-26 00:00:33,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:33,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:33,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:33,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:33,078 INFO L87 Difference]: Start difference. First operand 1219 states and 1627 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (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) [2022-11-26 00:00:37,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:39,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:40,588 INFO L93 Difference]: Finished difference Result 1305 states and 1707 transitions. [2022-11-26 00:00:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (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 155 [2022-11-26 00:00:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:40,599 INFO L225 Difference]: With dead ends: 1305 [2022-11-26 00:00:40,599 INFO L226 Difference]: Without dead ends: 1303 [2022-11-26 00:00:40,600 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 [2022-11-26 00:00:40,600 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 774 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:40,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2545 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-26 00:00:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-11-26 00:00:40,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1299. [2022-11-26 00:00:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 753 states have (on average 1.2284196547144755) internal successors, (925), 794 states have internal predecessors, (925), 387 states have call successors, (387), 144 states have call predecessors, (387), 145 states have return successors, (390), 379 states have call predecessors, (390), 385 states have call successors, (390) [2022-11-26 00:00:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1702 transitions. [2022-11-26 00:00:40,882 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1702 transitions. Word has length 155 [2022-11-26 00:00:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:40,883 INFO L495 AbstractCegarLoop]: Abstraction has 1299 states and 1702 transitions. [2022-11-26 00:00:40,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (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) [2022-11-26 00:00:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1702 transitions. [2022-11-26 00:00:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-26 00:00:40,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:40,886 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] [2022-11-26 00:00:40,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:00:40,887 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 31 more)] === [2022-11-26 00:00:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 480880811, now seen corresponding path program 1 times [2022-11-26 00:00:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605990840] [2022-11-26 00:00:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:40,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:41,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:41,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605990840] [2022-11-26 00:00:41,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605990840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:41,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:41,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:41,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758457095] [2022-11-26 00:00:41,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:41,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:41,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:41,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:41,191 INFO L87 Difference]: Start difference. First operand 1299 states and 1702 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) [2022-11-26 00:00:44,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:45,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:45,757 INFO L93 Difference]: Finished difference Result 1299 states and 1702 transitions. [2022-11-26 00:00:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:45,758 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 [2022-11-26 00:00:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:45,764 INFO L225 Difference]: With dead ends: 1299 [2022-11-26 00:00:45,764 INFO L226 Difference]: Without dead ends: 1297 [2022-11-26 00:00:45,765 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 [2022-11-26 00:00:45,766 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 888 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:45,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 1598 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:00:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-11-26 00:00:46,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1297. [2022-11-26 00:00:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 752 states have (on average 1.2273936170212767) internal successors, (923), 792 states have internal predecessors, (923), 387 states have call successors, (387), 144 states have call predecessors, (387), 145 states have return successors, (390), 379 states have call predecessors, (390), 385 states have call successors, (390) [2022-11-26 00:00:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1700 transitions. [2022-11-26 00:00:46,112 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1700 transitions. Word has length 133 [2022-11-26 00:00:46,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:46,113 INFO L495 AbstractCegarLoop]: Abstraction has 1297 states and 1700 transitions. [2022-11-26 00:00:46,113 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) [2022-11-26 00:00:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1700 transitions. [2022-11-26 00:00:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-26 00:00:46,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:46,117 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] [2022-11-26 00:00:46,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:00:46,117 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:00:46,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:46,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1459373542, now seen corresponding path program 1 times [2022-11-26 00:00:46,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:46,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656281259] [2022-11-26 00:00:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:46,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-26 00:00:46,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:46,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656281259] [2022-11-26 00:00:46,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656281259] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:00:46,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058204976] [2022-11-26 00:00:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:46,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:00:46,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:00:46,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:00:46,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:00:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:47,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:00:47,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:00:47,700 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-26 00:00:47,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:00:47,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058204976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:47,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:00:47,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-26 00:00:47,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860053861] [2022-11-26 00:00:47,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:47,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:00:47,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:47,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:00:47,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:00:47,704 INFO L87 Difference]: Start difference. First operand 1297 states and 1700 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-11-26 00:00:49,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:49,383 INFO L93 Difference]: Finished difference Result 2469 states and 3200 transitions. [2022-11-26 00:00:49,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:00:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 163 [2022-11-26 00:00:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:49,406 INFO L225 Difference]: With dead ends: 2469 [2022-11-26 00:00:49,408 INFO L226 Difference]: Without dead ends: 1313 [2022-11-26 00:00:49,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:00:49,414 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 834 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:49,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 857 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:00:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-26 00:00:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1311. [2022-11-26 00:00:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 757 states have (on average 1.2206076618229855) internal successors, (924), 797 states have internal predecessors, (924), 391 states have call successors, (391), 150 states have call predecessors, (391), 151 states have return successors, (394), 382 states have call predecessors, (394), 389 states have call successors, (394) [2022-11-26 00:00:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1709 transitions. [2022-11-26 00:00:49,716 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1709 transitions. Word has length 163 [2022-11-26 00:00:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:49,716 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1709 transitions. [2022-11-26 00:00:49,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-11-26 00:00:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1709 transitions. [2022-11-26 00:00:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-26 00:00:49,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:49,720 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] [2022-11-26 00:00:49,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:00:49,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:00:49,932 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 31 more)] === [2022-11-26 00:00:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1347870132, now seen corresponding path program 1 times [2022-11-26 00:00:49,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:49,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790731227] [2022-11-26 00:00:49,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:49,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:50,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:50,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790731227] [2022-11-26 00:00:50,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790731227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:50,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:50,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:50,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31084726] [2022-11-26 00:00:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:50,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:50,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:50,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:50,219 INFO L87 Difference]: Start difference. First operand 1311 states and 1709 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) [2022-11-26 00:00:54,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:57,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:57,200 INFO L93 Difference]: Finished difference Result 1927 states and 2503 transitions. [2022-11-26 00:00:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:57,201 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 [2022-11-26 00:00:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:57,211 INFO L225 Difference]: With dead ends: 1927 [2022-11-26 00:00:57,211 INFO L226 Difference]: Without dead ends: 1925 [2022-11-26 00:00:57,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:57,213 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 812 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:57,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2695 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 00:00:57,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2022-11-26 00:00:57,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1894. [2022-11-26 00:00:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1097 states have (on average 1.2187784867821332) internal successors, (1337), 1150 states have internal predecessors, (1337), 562 states have call successors, (562), 222 states have call predecessors, (562), 223 states have return successors, (577), 548 states have call predecessors, (577), 560 states have call successors, (577) [2022-11-26 00:00:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2476 transitions. [2022-11-26 00:00:57,638 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2476 transitions. Word has length 138 [2022-11-26 00:00:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:57,639 INFO L495 AbstractCegarLoop]: Abstraction has 1894 states and 2476 transitions. [2022-11-26 00:00:57,639 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) [2022-11-26 00:00:57,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2476 transitions. [2022-11-26 00:00:57,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-26 00:00:57,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:57,642 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] [2022-11-26 00:00:57,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:00:57,643 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 31 more)] === [2022-11-26 00:00:57,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:57,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1755972947, now seen corresponding path program 1 times [2022-11-26 00:00:57,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:57,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528616989] [2022-11-26 00:00:57,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:57,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:00:57,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:57,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528616989] [2022-11-26 00:00:57,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528616989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:57,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:57,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44184805] [2022-11-26 00:00:57,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:57,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:57,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:57,962 INFO L87 Difference]: Start difference. First operand 1894 states and 2476 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) [2022-11-26 00:01:02,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:03,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:03,655 INFO L93 Difference]: Finished difference Result 1894 states and 2476 transitions. [2022-11-26 00:01:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:01:03,656 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 [2022-11-26 00:01:03,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:03,665 INFO L225 Difference]: With dead ends: 1894 [2022-11-26 00:01:03,665 INFO L226 Difference]: Without dead ends: 1892 [2022-11-26 00:01:03,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:03,667 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 879 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:03,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1584 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:01:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2022-11-26 00:01:03,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2022-11-26 00:01:03,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1096 states have (on average 1.2180656934306568) internal successors, (1335), 1148 states have internal predecessors, (1335), 562 states have call successors, (562), 222 states have call predecessors, (562), 223 states have return successors, (577), 548 states have call predecessors, (577), 560 states have call successors, (577) [2022-11-26 00:01:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2474 transitions. [2022-11-26 00:01:04,000 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2474 transitions. Word has length 143 [2022-11-26 00:01:04,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:04,000 INFO L495 AbstractCegarLoop]: Abstraction has 1892 states and 2474 transitions. [2022-11-26 00:01:04,001 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) [2022-11-26 00:01:04,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2474 transitions. [2022-11-26 00:01:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-26 00:01:04,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:04,004 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:04,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:01:04,005 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 31 more)] === [2022-11-26 00:01:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash -929265282, now seen corresponding path program 1 times [2022-11-26 00:01:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:04,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781880528] [2022-11-26 00:01:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:04,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:04,501 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-26 00:01:04,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:04,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781880528] [2022-11-26 00:01:04,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781880528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:04,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:04,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:01:04,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079351543] [2022-11-26 00:01:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:04,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:01:04,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:01:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:04,504 INFO L87 Difference]: Start difference. First operand 1892 states and 2474 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-26 00:01:11,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:12,838 INFO L93 Difference]: Finished difference Result 1896 states and 2476 transitions. [2022-11-26 00:01:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:12,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 165 [2022-11-26 00:01:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:12,846 INFO L225 Difference]: With dead ends: 1896 [2022-11-26 00:01:12,846 INFO L226 Difference]: Without dead ends: 1894 [2022-11-26 00:01:12,848 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 [2022-11-26 00:01:12,848 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 148 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:12,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 3163 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-26 00:01:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2022-11-26 00:01:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1890. [2022-11-26 00:01:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1095 states have (on average 1.2155251141552512) internal successors, (1331), 1146 states have internal predecessors, (1331), 562 states have call successors, (562), 222 states have call predecessors, (562), 223 states have return successors, (577), 548 states have call predecessors, (577), 560 states have call successors, (577) [2022-11-26 00:01:13,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2470 transitions. [2022-11-26 00:01:13,370 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2470 transitions. Word has length 165 [2022-11-26 00:01:13,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:13,371 INFO L495 AbstractCegarLoop]: Abstraction has 1890 states and 2470 transitions. [2022-11-26 00:01:13,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-26 00:01:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2470 transitions. [2022-11-26 00:01:13,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-26 00:01:13,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:13,375 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] [2022-11-26 00:01:13,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:01:13,376 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 31 more)] === [2022-11-26 00:01:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash -760553958, now seen corresponding path program 1 times [2022-11-26 00:01:13,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:13,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123013582] [2022-11-26 00:01:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:01:13,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:13,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123013582] [2022-11-26 00:01:13,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123013582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:13,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:13,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796766137] [2022-11-26 00:01:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:13,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:13,799 INFO L87 Difference]: Start difference. First operand 1890 states and 2470 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) [2022-11-26 00:01:18,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:20,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:22,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:22,230 INFO L93 Difference]: Finished difference Result 3072 states and 4019 transitions. [2022-11-26 00:01:22,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:01:22,231 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 [2022-11-26 00:01:22,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:22,243 INFO L225 Difference]: With dead ends: 3072 [2022-11-26 00:01:22,244 INFO L226 Difference]: Without dead ends: 2942 [2022-11-26 00:01:22,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:22,248 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 776 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:22,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2648 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-26 00:01:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2022-11-26 00:01:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2924. [2022-11-26 00:01:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 1707 states have (on average 1.2196836555360282) internal successors, (2082), 1780 states have internal predecessors, (2082), 860 states have call successors, (860), 345 states have call predecessors, (860), 347 states have return successors, (908), 841 states have call predecessors, (908), 856 states have call successors, (908) [2022-11-26 00:01:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3850 transitions. [2022-11-26 00:01:22,769 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3850 transitions. Word has length 148 [2022-11-26 00:01:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:22,769 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 3850 transitions. [2022-11-26 00:01:22,770 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) [2022-11-26 00:01:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3850 transitions. [2022-11-26 00:01:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-26 00:01:22,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:22,772 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:22,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:01:22,773 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:01:22,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1068939897, now seen corresponding path program 1 times [2022-11-26 00:01:22,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:22,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16370163] [2022-11-26 00:01:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-26 00:01:23,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:23,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16370163] [2022-11-26 00:01:23,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16370163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:23,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:23,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:01:23,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237465620] [2022-11-26 00:01:23,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:23,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:01:23,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:01:23,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:23,008 INFO L87 Difference]: Start difference. First operand 2924 states and 3850 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:01:27,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:28,257 INFO L93 Difference]: Finished difference Result 6224 states and 8538 transitions. [2022-11-26 00:01:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:01:28,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 178 [2022-11-26 00:01:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:28,271 INFO L225 Difference]: With dead ends: 6224 [2022-11-26 00:01:28,271 INFO L226 Difference]: Without dead ends: 4015 [2022-11-26 00:01:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:28,280 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 160 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:28,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 2023 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:01:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2022-11-26 00:01:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 2925. [2022-11-26 00:01:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 1708 states have (on average 1.2195550351288056) internal successors, (2083), 1781 states have internal predecessors, (2083), 860 states have call successors, (860), 345 states have call predecessors, (860), 347 states have return successors, (908), 841 states have call predecessors, (908), 856 states have call successors, (908) [2022-11-26 00:01:29,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3851 transitions. [2022-11-26 00:01:29,197 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3851 transitions. Word has length 178 [2022-11-26 00:01:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:29,198 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 3851 transitions. [2022-11-26 00:01:29,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:01:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3851 transitions. [2022-11-26 00:01:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-26 00:01:29,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:29,202 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:29,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:01:29,202 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:01:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:29,203 INFO L85 PathProgramCache]: Analyzing trace with hash -849603551, now seen corresponding path program 1 times [2022-11-26 00:01:29,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:29,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143016096] [2022-11-26 00:01:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:29,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-26 00:01:30,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:30,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143016096] [2022-11-26 00:01:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143016096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:01:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894561659] [2022-11-26 00:01:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:01:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:01:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:01:30,701 INFO L87 Difference]: Start difference. First operand 2925 states and 3851 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-26 00:01:39,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:40,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:42,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:42,847 INFO L93 Difference]: Finished difference Result 6577 states and 8925 transitions. [2022-11-26 00:01:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:01:42,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 182 [2022-11-26 00:01:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:42,870 INFO L225 Difference]: With dead ends: 6577 [2022-11-26 00:01:42,870 INFO L226 Difference]: Without dead ends: 3728 [2022-11-26 00:01:42,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:01:42,879 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 324 mSDsluCounter, 5074 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 6177 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:42,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 6177 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-11-26 00:01:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2022-11-26 00:01:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 2931. [2022-11-26 00:01:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 1712 states have (on average 1.2190420560747663) internal successors, (2087), 1785 states have internal predecessors, (2087), 861 states have call successors, (861), 345 states have call predecessors, (861), 348 states have return successors, (910), 843 states have call predecessors, (910), 857 states have call successors, (910) [2022-11-26 00:01:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 3858 transitions. [2022-11-26 00:01:43,929 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 3858 transitions. Word has length 182 [2022-11-26 00:01:43,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:43,930 INFO L495 AbstractCegarLoop]: Abstraction has 2931 states and 3858 transitions. [2022-11-26 00:01:43,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-26 00:01:43,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 3858 transitions. [2022-11-26 00:01:43,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-26 00:01:43,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:43,933 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:43,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:01:43,934 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:01:43,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:43,934 INFO L85 PathProgramCache]: Analyzing trace with hash -267013360, now seen corresponding path program 1 times [2022-11-26 00:01:43,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:43,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288312234] [2022-11-26 00:01:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:43,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-26 00:01:45,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:45,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288312234] [2022-11-26 00:01:45,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288312234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:45,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:45,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:01:45,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472807200] [2022-11-26 00:01:45,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:45,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:01:45,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:45,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:01:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:01:45,075 INFO L87 Difference]: Start difference. First operand 2931 states and 3858 transitions. Second operand has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-11-26 00:01:47,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:56,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:58,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:03,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:03,955 INFO L93 Difference]: Finished difference Result 5564 states and 7295 transitions. [2022-11-26 00:02:03,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:02:03,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 173 [2022-11-26 00:02:03,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:03,970 INFO L225 Difference]: With dead ends: 5564 [2022-11-26 00:02:03,970 INFO L226 Difference]: Without dead ends: 3202 [2022-11-26 00:02:03,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:02:03,978 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 59 mSDsluCounter, 6550 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 7394 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:03,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 7394 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1513 Invalid, 1 Unknown, 0 Unchecked, 17.9s Time] [2022-11-26 00:02:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2022-11-26 00:02:04,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2961. [2022-11-26 00:02:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 1732 states have (on average 1.216512702078522) internal successors, (2107), 1805 states have internal predecessors, (2107), 871 states have call successors, (871), 345 states have call predecessors, (871), 348 states have return successors, (920), 853 states have call predecessors, (920), 867 states have call successors, (920) [2022-11-26 00:02:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 3898 transitions. [2022-11-26 00:02:04,804 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 3898 transitions. Word has length 173 [2022-11-26 00:02:04,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:04,804 INFO L495 AbstractCegarLoop]: Abstraction has 2961 states and 3898 transitions. [2022-11-26 00:02:04,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-11-26 00:02:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 3898 transitions. [2022-11-26 00:02:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-26 00:02:04,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:04,808 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:04,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:02:04,808 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 00:02:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:04,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2110743020, now seen corresponding path program 1 times [2022-11-26 00:02:04,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:04,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588832488] [2022-11-26 00:02:04,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:04,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:04,917 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:02:04,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658605153] [2022-11-26 00:02:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:04,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:02:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:04,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:02:04,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e356717-f0a9-4995-a2ac-5b2ed76c3f19/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:02:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:07,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-26 00:02:07,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:02:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-26 00:02:08,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:02:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-26 00:02:08,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:08,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588832488] [2022-11-26 00:02:08,911 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:02:08,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658605153] [2022-11-26 00:02:08,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658605153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:02:08,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [840932343] [2022-11-26 00:02:08,941 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2022-11-26 00:02:08,941 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:02:08,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:02:08,952 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:02:08,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:02:11,197 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 [2022-11-26 00:02:11,335 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 [2022-11-26 00:02:11,401 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 [2022-11-26 00:02:11,474 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 [2022-11-26 00:02:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:11,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 435 [2022-11-26 00:02:12,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:12,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:12,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:12,479 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-11-26 00:02:12,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-26 00:02:13,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2022-11-26 00:02:13,195 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 19 treesize of output 1 [2022-11-26 00:02:13,269 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 [2022-11-26 00:02:13,343 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 [2022-11-26 00:02:13,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:13,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:02:13,919 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-26 00:02:14,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-26 00:02:14,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 64 [2022-11-26 00:02:14,710 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 19 treesize of output 1 [2022-11-26 00:02:14,844 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 [2022-11-26 00:02:14,990 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 [2022-11-26 00:02:15,087 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 [2022-11-26 00:02:15,166 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 [2022-11-26 00:02:15,247 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 [2022-11-26 00:02:15,330 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 [2022-11-26 00:02:15,433 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 [2022-11-26 00:07:53,422 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 [2022-11-26 00:07:53,428 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 [2022-11-26 00:09:57,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:09:57,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:57,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:09:57,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:09:58,288 INFO L321 Elim1Store]: treesize reduction 36, result has 48.6 percent of original size [2022-11-26 00:09:58,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 63 select indices, 63 select index equivalence classes, 904 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 3 case distinctions, treesize of input 4637 treesize of output 4462 [2022-11-26 00:09:58,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:58,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:59,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:00,739 INFO L321 Elim1Store]: treesize reduction 255, result has 50.1 percent of original size [2022-11-26 00:10:00,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 105 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 30 case distinctions, treesize of input 4617 treesize of output 4573 [2022-11-26 00:10:01,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:10:01,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:10:01,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:10:01,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:10:01,440 INFO L321 Elim1Store]: treesize reduction 44, result has 37.1 percent of original size [2022-11-26 00:10:01,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 63 select indices, 63 select index equivalence classes, 904 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 3 case distinctions, treesize of input 4317 treesize of output 4134 [2022-11-26 00:10:59,786 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 1019 DAG size of output: 1019 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:12:05,236 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 1112 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)