./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--hwmon--nct6775.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf24afca4bd29711e5a59799d259264fa0e937d2e2e754913d59a799bc0c4c63 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:55:27,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:55:27,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:55:27,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:55:27,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:55:27,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:55:27,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:55:27,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:55:27,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:55:27,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:55:27,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:55:27,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:55:27,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:55:27,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:55:27,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:55:27,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:55:27,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:55:27,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:55:27,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:55:27,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:55:27,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:55:27,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:55:27,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:55:27,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:55:27,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:55:27,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:55:27,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:55:27,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:55:27,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:55:27,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:55:27,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:55:27,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:55:27,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:55:27,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:55:27,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:55:27,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:55:27,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:55:27,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:55:27,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:55:27,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:55:27,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:55:27,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:55:27,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:55:27,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:55:27,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:55:27,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:55:27,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:55:27,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:55:27,243 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:55:27,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:55:27,244 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:55:27,244 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:55:27,245 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:55:27,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:55:27,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:55:27,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:55:27,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:55:27,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:55:27,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:55:27,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:55:27,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:55:27,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:55:27,247 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_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf24afca4bd29711e5a59799d259264fa0e937d2e2e754913d59a799bc0c4c63 [2022-12-14 06:55:27,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:55:27,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:55:27,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:55:27,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:55:27,425 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:55:27,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i [2022-12-14 06:55:29,920 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:55:30,447 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:55:30,447 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i [2022-12-14 06:55:30,493 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/data/e340144f3/cbbc871b4ce949a39e9834c4026b53e1/FLAG88e7c266e [2022-12-14 06:55:30,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/data/e340144f3/cbbc871b4ce949a39e9834c4026b53e1 [2022-12-14 06:55:30,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:55:30,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:55:30,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:55:30,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:55:30,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:55:30,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:55:30" (1/1) ... [2022-12-14 06:55:30,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631f6fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:30, skipping insertion in model container [2022-12-14 06:55:30,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:55:30" (1/1) ... [2022-12-14 06:55:30,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:55:30,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:55:31,474 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 06:55:31,479 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 06:55:31,644 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 06:55:31,758 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 06:55:31,763 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:55:31,942 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:55:31,987 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:31,998 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,011 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,017 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,030 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,050 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,056 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,062 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,069 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,069 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:55:32,070 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:55:32,072 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:55:32,078 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,100 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,106 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,116 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,128 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,150 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,162 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,188 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,194 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:55:32,194 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:55:32,201 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,230 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,241 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,252 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,263 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,277 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,291 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,301 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,315 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,339 WARN L623 FunctionHandler]: Unknown extern function vid_from_reg [2022-12-14 06:55:32,339 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:32,381 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 06:55:32,381 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-12-14 06:55:32,382 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 06:55:32,409 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,410 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,414 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,415 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,420 WARN L623 FunctionHandler]: Unknown extern function vid_which_vrm [2022-12-14 06:55:32,421 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:32,422 WARN L623 FunctionHandler]: Unknown extern function devm_hwmon_device_register_with_groups [2022-12-14 06:55:32,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:32,448 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 06:55:32,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:32,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:32,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:32,456 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-14 06:55:32,456 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_data [2022-12-14 06:55:32,457 WARN L623 FunctionHandler]: Unknown extern function acpi_check_resource_conflict [2022-12-14 06:55:32,457 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 06:55:32,458 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-14 06:55:32,458 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-14 06:55:32,458 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 06:55:32,459 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 06:55:32,464 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 06:55:32,996 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 06:55:32,996 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 06:55:32,997 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 06:55:32,997 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:55:33,554 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:55:33,788 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:55:34,229 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533022,533035] [2022-12-14 06:55:34,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533167,533180] [2022-12-14 06:55:34,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533313,533326] [2022-12-14 06:55:34,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533478,533491] [2022-12-14 06:55:34,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533636,533649] [2022-12-14 06:55:34,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533794,533807] [2022-12-14 06:55:34,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533952,533965] [2022-12-14 06:55:34,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534112,534125] [2022-12-14 06:55:34,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534271,534284] [2022-12-14 06:55:34,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534410,534423] [2022-12-14 06:55:34,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534552,534565] [2022-12-14 06:55:34,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534701,534714] [2022-12-14 06:55:34,238 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534840,534853] [2022-12-14 06:55:34,238 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534995,535008] [2022-12-14 06:55:34,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535155,535168] [2022-12-14 06:55:34,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535306,535319] [2022-12-14 06:55:34,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535457,535470] [2022-12-14 06:55:34,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535609,535622] [2022-12-14 06:55:34,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535758,535771] [2022-12-14 06:55:34,241 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535906,535919] [2022-12-14 06:55:34,241 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536063,536076] [2022-12-14 06:55:34,242 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536212,536225] [2022-12-14 06:55:34,242 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536368,536381] [2022-12-14 06:55:34,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536521,536534] [2022-12-14 06:55:34,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536667,536680] [2022-12-14 06:55:34,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536810,536823] [2022-12-14 06:55:34,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536962,536975] [2022-12-14 06:55:34,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537108,537121] [2022-12-14 06:55:34,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537253,537266] [2022-12-14 06:55:34,246 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537407,537420] [2022-12-14 06:55:34,246 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537558,537571] [2022-12-14 06:55:34,246 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537713,537726] [2022-12-14 06:55:34,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537865,537878] [2022-12-14 06:55:34,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538020,538033] [2022-12-14 06:55:34,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538184,538197] [2022-12-14 06:55:34,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538340,538353] [2022-12-14 06:55:34,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538504,538517] [2022-12-14 06:55:34,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538646,538659] [2022-12-14 06:55:34,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538804,538817] [2022-12-14 06:55:34,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538971,538984] [2022-12-14 06:55:34,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539130,539143] [2022-12-14 06:55:34,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539289,539302] [2022-12-14 06:55:34,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539438,539451] [2022-12-14 06:55:34,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539585,539598] [2022-12-14 06:55:34,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539724,539737] [2022-12-14 06:55:34,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539887,539900] [2022-12-14 06:55:34,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540053,540066] [2022-12-14 06:55:34,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540217,540230] [2022-12-14 06:55:34,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540382,540395] [2022-12-14 06:55:34,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540547,540560] [2022-12-14 06:55:34,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540713,540726] [2022-12-14 06:55:34,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540878,540891] [2022-12-14 06:55:34,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541045,541058] [2022-12-14 06:55:34,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541205,541218] [2022-12-14 06:55:34,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541367,541380] [2022-12-14 06:55:34,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541526,541539] [2022-12-14 06:55:34,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541672,541685] [2022-12-14 06:55:34,259 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541815,541828] [2022-12-14 06:55:34,259 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541959,541972] [2022-12-14 06:55:34,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542102,542115] [2022-12-14 06:55:34,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542246,542259] [2022-12-14 06:55:34,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542387,542400] [2022-12-14 06:55:34,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542525,542538] [2022-12-14 06:55:34,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542683,542696] [2022-12-14 06:55:34,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542842,542855] [2022-12-14 06:55:34,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542998,543011] [2022-12-14 06:55:34,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543147,543160] [2022-12-14 06:55:34,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543299,543312] [2022-12-14 06:55:34,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543450,543463] [2022-12-14 06:55:34,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543599,543612] [2022-12-14 06:55:34,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543751,543764] [2022-12-14 06:55:34,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543899,543912] [2022-12-14 06:55:34,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544052,544065] [2022-12-14 06:55:34,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544203,544216] [2022-12-14 06:55:34,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544353,544366] [2022-12-14 06:55:34,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544500,544513] [2022-12-14 06:55:34,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544651,544664] [2022-12-14 06:55:34,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544802,544815] [2022-12-14 06:55:34,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544950,544963] [2022-12-14 06:55:34,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545116,545129] [2022-12-14 06:55:34,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545285,545298] [2022-12-14 06:55:34,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545452,545465] [2022-12-14 06:55:34,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545620,545633] [2022-12-14 06:55:34,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545770,545783] [2022-12-14 06:55:34,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545917,545930] [2022-12-14 06:55:34,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546078,546091] [2022-12-14 06:55:34,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546248,546261] [2022-12-14 06:55:34,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546410,546423] [2022-12-14 06:55:34,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:55:34,351 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:55:34,430 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 06:55:34,430 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 06:55:34,432 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 06:55:34,436 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 06:55:34,437 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 06:55:34,466 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:55:34,483 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,485 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,487 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,488 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,491 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,495 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,497 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,497 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,499 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,500 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:55:34,500 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 06:55:34,501 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 06:55:34,503 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,509 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,510 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,513 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,515 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,523 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,526 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,534 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,535 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:55:34,536 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 06:55:34,538 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,543 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,545 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,547 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,550 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,555 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,570 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,572 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,576 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,585 WARN L623 FunctionHandler]: Unknown extern function vid_from_reg [2022-12-14 06:55:34,586 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 06:55:34,595 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 06:55:34,595 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-12-14 06:55:34,596 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 06:55:34,607 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,608 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,611 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,612 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,615 WARN L623 FunctionHandler]: Unknown extern function vid_which_vrm [2022-12-14 06:55:34,616 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 06:55:34,617 WARN L623 FunctionHandler]: Unknown extern function devm_hwmon_device_register_with_groups [2022-12-14 06:55:34,618 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:34,622 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 06:55:34,623 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:34,623 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:34,623 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 06:55:34,624 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-14 06:55:34,625 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_data [2022-12-14 06:55:34,625 WARN L623 FunctionHandler]: Unknown extern function acpi_check_resource_conflict [2022-12-14 06:55:34,625 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 06:55:34,626 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-14 06:55:34,626 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-14 06:55:34,626 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 06:55:34,627 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 06:55:34,627 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 06:55:34,683 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 06:55:34,683 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 06:55:34,683 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 06:55:34,684 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 06:55:34,692 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 06:55:34,697 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 06:55:34,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533022,533035] [2022-12-14 06:55:34,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533167,533180] [2022-12-14 06:55:34,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533313,533326] [2022-12-14 06:55:34,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533478,533491] [2022-12-14 06:55:34,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533636,533649] [2022-12-14 06:55:34,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533794,533807] [2022-12-14 06:55:34,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[533952,533965] [2022-12-14 06:55:34,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534112,534125] [2022-12-14 06:55:34,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534271,534284] [2022-12-14 06:55:34,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534410,534423] [2022-12-14 06:55:34,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534552,534565] [2022-12-14 06:55:34,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534701,534714] [2022-12-14 06:55:34,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534840,534853] [2022-12-14 06:55:34,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[534995,535008] [2022-12-14 06:55:34,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535155,535168] [2022-12-14 06:55:34,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535306,535319] [2022-12-14 06:55:34,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535457,535470] [2022-12-14 06:55:34,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535609,535622] [2022-12-14 06:55:34,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535758,535771] [2022-12-14 06:55:34,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[535906,535919] [2022-12-14 06:55:34,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536063,536076] [2022-12-14 06:55:34,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536212,536225] [2022-12-14 06:55:34,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536368,536381] [2022-12-14 06:55:34,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536521,536534] [2022-12-14 06:55:34,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536667,536680] [2022-12-14 06:55:34,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536810,536823] [2022-12-14 06:55:34,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[536962,536975] [2022-12-14 06:55:34,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537108,537121] [2022-12-14 06:55:34,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537253,537266] [2022-12-14 06:55:34,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537407,537420] [2022-12-14 06:55:34,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537558,537571] [2022-12-14 06:55:34,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537713,537726] [2022-12-14 06:55:34,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[537865,537878] [2022-12-14 06:55:34,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538020,538033] [2022-12-14 06:55:34,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538184,538197] [2022-12-14 06:55:34,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538340,538353] [2022-12-14 06:55:34,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538504,538517] [2022-12-14 06:55:34,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538646,538659] [2022-12-14 06:55:34,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538804,538817] [2022-12-14 06:55:34,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[538971,538984] [2022-12-14 06:55:34,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539130,539143] [2022-12-14 06:55:34,720 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539289,539302] [2022-12-14 06:55:34,720 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539438,539451] [2022-12-14 06:55:34,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539585,539598] [2022-12-14 06:55:34,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539724,539737] [2022-12-14 06:55:34,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[539887,539900] [2022-12-14 06:55:34,722 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540053,540066] [2022-12-14 06:55:34,722 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540217,540230] [2022-12-14 06:55:34,722 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540382,540395] [2022-12-14 06:55:34,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540547,540560] [2022-12-14 06:55:34,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540713,540726] [2022-12-14 06:55:34,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[540878,540891] [2022-12-14 06:55:34,724 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541045,541058] [2022-12-14 06:55:34,724 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541205,541218] [2022-12-14 06:55:34,724 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541367,541380] [2022-12-14 06:55:34,725 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541526,541539] [2022-12-14 06:55:34,725 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541672,541685] [2022-12-14 06:55:34,725 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541815,541828] [2022-12-14 06:55:34,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[541959,541972] [2022-12-14 06:55:34,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542102,542115] [2022-12-14 06:55:34,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542246,542259] [2022-12-14 06:55:34,727 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542387,542400] [2022-12-14 06:55:34,727 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542525,542538] [2022-12-14 06:55:34,727 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542683,542696] [2022-12-14 06:55:34,728 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542842,542855] [2022-12-14 06:55:34,728 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[542998,543011] [2022-12-14 06:55:34,728 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543147,543160] [2022-12-14 06:55:34,729 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543299,543312] [2022-12-14 06:55:34,729 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543450,543463] [2022-12-14 06:55:34,729 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543599,543612] [2022-12-14 06:55:34,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543751,543764] [2022-12-14 06:55:34,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[543899,543912] [2022-12-14 06:55:34,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544052,544065] [2022-12-14 06:55:34,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544203,544216] [2022-12-14 06:55:34,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544353,544366] [2022-12-14 06:55:34,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544500,544513] [2022-12-14 06:55:34,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544651,544664] [2022-12-14 06:55:34,732 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544802,544815] [2022-12-14 06:55:34,732 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[544950,544963] [2022-12-14 06:55:34,732 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545116,545129] [2022-12-14 06:55:34,732 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545285,545298] [2022-12-14 06:55:34,733 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545452,545465] [2022-12-14 06:55:34,733 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545620,545633] [2022-12-14 06:55:34,733 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545770,545783] [2022-12-14 06:55:34,733 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[545917,545930] [2022-12-14 06:55:34,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546078,546091] [2022-12-14 06:55:34,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546248,546261] [2022-12-14 06:55:34,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i[546410,546423] [2022-12-14 06:55:34,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:55:35,063 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:55:35,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35 WrapperNode [2022-12-14 06:55:35,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:55:35,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:55:35,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:55:35,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:55:35,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,508 INFO L138 Inliner]: procedures = 702, calls = 5957, calls flagged for inlining = 406, calls inlined = 323, statements flattened = 12702 [2022-12-14 06:55:35,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:55:35,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:55:35,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:55:35,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:55:35,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:55:35,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:55:35,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:55:35,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:55:35,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (1/1) ... [2022-12-14 06:55:35,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:55:35,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:55:35,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:55:35,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure nct6791_enable_io_mapping [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6791_enable_io_mapping [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 06:55:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-12-14 06:55:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure add_temp_sensors [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure add_temp_sensors [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure pwm_update_registers [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pwm_update_registers [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_resume [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_resume [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure fan_to_reg [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure fan_to_reg [2022-12-14 06:55:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 06:55:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_suspend [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_suspend [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-12-14 06:55:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-12-14 06:55:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_write_temp [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_write_temp [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u16~0~X~int~TO~int [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u16~0~X~int~TO~int [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:55:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:55:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_create_attr_group [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_create_attr_group [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_update_device [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_update_device [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure div_from_reg [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure div_from_reg [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_set_bank [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_set_bank [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_probe [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_probe [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_write_fan_div_common [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_write_fan_div_common [2022-12-14 06:55:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_update_lock_of_nct6775_data [2022-12-14 06:55:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_update_lock_of_nct6775_data [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_update_fan_div_common [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_update_fan_div_common [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 06:55:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 06:55:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure store_weight_temp [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure store_weight_temp [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_temp_sel_common [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_temp_sel_common [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure is_word_sized [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure is_word_sized [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 06:55:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 06:55:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_write_value [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_write_value [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure find_temp_source [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure find_temp_source [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure fan_from_reg16 [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure fan_from_reg16 [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_update_lock_of_nct6775_data [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_update_lock_of_nct6775_data [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure nct6775_read_value [2022-12-14 06:55:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure nct6775_read_value [2022-12-14 06:55:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 06:55:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 06:55:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:55:36,869 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:55:36,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:55:36,980 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 06:55:57,502 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:55:59,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:55:59,422 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 06:55:59,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:55:59 BoogieIcfgContainer [2022-12-14 06:55:59,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:55:59,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:55:59,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:55:59,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:55:59,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:55:30" (1/3) ... [2022-12-14 06:55:59,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cc1619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:55:59, skipping insertion in model container [2022-12-14 06:55:59,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:55:35" (2/3) ... [2022-12-14 06:55:59,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cc1619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:55:59, skipping insertion in model container [2022-12-14 06:55:59,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:55:59" (3/3) ... [2022-12-14 06:55:59,434 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--hwmon--nct6775.ko.cil.i [2022-12-14 06:55:59,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:55:59,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-12-14 06:55:59,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:55:59,511 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;@2ca6f222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:55:59,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 06:55:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 2086 states, 1267 states have (on average 1.32991318074191) internal successors, (1685), 1359 states have internal predecessors, (1685), 713 states have call successors, (713), 81 states have call predecessors, (713), 80 states have return successors, (708), 708 states have call predecessors, (708), 708 states have call successors, (708) [2022-12-14 06:55:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 06:55:59,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:59,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:55:59,529 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 23 more)] === [2022-12-14 06:55:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1256636146, now seen corresponding path program 1 times [2022-12-14 06:55:59,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:59,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602393786] [2022-12-14 06:55:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:56:00,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:00,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602393786] [2022-12-14 06:56:00,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602393786] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:00,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:00,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:56:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829941427] [2022-12-14 06:56:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:00,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:56:00,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:56:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:56:01,024 INFO L87 Difference]: Start difference. First operand has 2086 states, 1267 states have (on average 1.32991318074191) internal successors, (1685), 1359 states have internal predecessors, (1685), 713 states have call successors, (713), 81 states have call predecessors, (713), 80 states have return successors, (708), 708 states have call predecessors, (708), 708 states have call successors, (708) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 06:56:03,841 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 [] [2022-12-14 06:56:05,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:07,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:09,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:11,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:15,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:16,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:19,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:21,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:22,149 INFO L93 Difference]: Finished difference Result 5228 states and 7945 transitions. [2022-12-14 06:56:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:56:22,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-12-14 06:56:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:22,176 INFO L225 Difference]: With dead ends: 5228 [2022-12-14 06:56:22,176 INFO L226 Difference]: Without dead ends: 3143 [2022-12-14 06:56:22,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:56:22,200 INFO L413 NwaCegarLoop]: 3116 mSDtfsCounter, 2681 mSDsluCounter, 4797 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 7913 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:22,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2685 Valid, 7913 Invalid, 860 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 852 Invalid, 7 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 06:56:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2022-12-14 06:56:22,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 3093. [2022-12-14 06:56:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 1865 states have (on average 1.2959785522788203) internal successors, (2417), 1989 states have internal predecessors, (2417), 1061 states have call successors, (1061), 143 states have call predecessors, (1061), 142 states have return successors, (1059), 1057 states have call predecessors, (1059), 1059 states have call successors, (1059) [2022-12-14 06:56:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4537 transitions. [2022-12-14 06:56:22,393 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4537 transitions. Word has length 49 [2022-12-14 06:56:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:22,394 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4537 transitions. [2022-12-14 06:56:22,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 06:56:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4537 transitions. [2022-12-14 06:56:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 06:56:22,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:22,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:22,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:56:22,397 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 23 more)] === [2022-12-14 06:56:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash -899073637, now seen corresponding path program 1 times [2022-12-14 06:56:22,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751828712] [2022-12-14 06:56:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:22,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:56:23,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:23,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751828712] [2022-12-14 06:56:23,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751828712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:23,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:23,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:56:23,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063173904] [2022-12-14 06:56:23,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:23,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:56:23,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:23,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:56:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:56:23,384 INFO L87 Difference]: Start difference. First operand 3093 states and 4537 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:56:25,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:27,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:29,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:31,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:33,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:36,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:39,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:41,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:42,103 INFO L93 Difference]: Finished difference Result 3143 states and 4566 transitions. [2022-12-14 06:56:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:56:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-12-14 06:56:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:42,116 INFO L225 Difference]: With dead ends: 3143 [2022-12-14 06:56:42,116 INFO L226 Difference]: Without dead ends: 3141 [2022-12-14 06:56:42,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:56:42,118 INFO L413 NwaCegarLoop]: 3099 mSDtfsCounter, 2661 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:42,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 7872 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 18.5s Time] [2022-12-14 06:56:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-12-14 06:56:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3093. [2022-12-14 06:56:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 1865 states have (on average 1.2954423592493298) internal successors, (2416), 1989 states have internal predecessors, (2416), 1061 states have call successors, (1061), 143 states have call predecessors, (1061), 142 states have return successors, (1059), 1057 states have call predecessors, (1059), 1059 states have call successors, (1059) [2022-12-14 06:56:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4536 transitions. [2022-12-14 06:56:42,240 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4536 transitions. Word has length 54 [2022-12-14 06:56:42,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:42,240 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4536 transitions. [2022-12-14 06:56:42,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 06:56:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4536 transitions. [2022-12-14 06:56:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 06:56:42,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:42,242 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:42,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:56:42,242 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 23 more)] === [2022-12-14 06:56:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1500461804, now seen corresponding path program 1 times [2022-12-14 06:56:42,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:42,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718261505] [2022-12-14 06:56:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:56:43,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:43,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718261505] [2022-12-14 06:56:43,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718261505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:43,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:43,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:56:43,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67238946] [2022-12-14 06:56:43,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:43,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:56:43,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:43,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:56:43,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:56:43,077 INFO L87 Difference]: Start difference. First operand 3093 states and 4536 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 06:56:45,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:47,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:49,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:53,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:57,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:56:58,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:00,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:02,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:04,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:05,156 INFO L93 Difference]: Finished difference Result 3141 states and 4564 transitions. [2022-12-14 06:57:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:57:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2022-12-14 06:57:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:05,169 INFO L225 Difference]: With dead ends: 3141 [2022-12-14 06:57:05,169 INFO L226 Difference]: Without dead ends: 3139 [2022-12-14 06:57:05,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:57:05,171 INFO L413 NwaCegarLoop]: 3099 mSDtfsCounter, 2658 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:05,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 7872 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 848 Invalid, 8 Unknown, 0 Unchecked, 21.9s Time] [2022-12-14 06:57:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2022-12-14 06:57:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 3093. [2022-12-14 06:57:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 1865 states have (on average 1.2949061662198391) internal successors, (2415), 1989 states have internal predecessors, (2415), 1061 states have call successors, (1061), 143 states have call predecessors, (1061), 142 states have return successors, (1059), 1057 states have call predecessors, (1059), 1059 states have call successors, (1059) [2022-12-14 06:57:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4535 transitions. [2022-12-14 06:57:05,312 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4535 transitions. Word has length 59 [2022-12-14 06:57:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:05,312 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4535 transitions. [2022-12-14 06:57:05,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 06:57:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4535 transitions. [2022-12-14 06:57:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 06:57:05,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:05,314 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:05,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:57:05,315 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 23 more)] === [2022-12-14 06:57:05,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:05,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1532618698, now seen corresponding path program 1 times [2022-12-14 06:57:05,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:05,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862248189] [2022-12-14 06:57:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:05,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:57:06,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:06,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862248189] [2022-12-14 06:57:06,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862248189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:06,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:06,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:57:06,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685149722] [2022-12-14 06:57:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:06,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:57:06,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:06,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:57:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:57:06,113 INFO L87 Difference]: Start difference. First operand 3093 states and 4535 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:57:08,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:10,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:12,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:14,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:16,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:19,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:22,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:24,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:24,961 INFO L93 Difference]: Finished difference Result 3139 states and 4562 transitions. [2022-12-14 06:57:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:57:24,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 06:57:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:24,974 INFO L225 Difference]: With dead ends: 3139 [2022-12-14 06:57:24,974 INFO L226 Difference]: Without dead ends: 3137 [2022-12-14 06:57:24,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:57:24,975 INFO L413 NwaCegarLoop]: 3099 mSDtfsCounter, 2655 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:24,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 7872 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 18.7s Time] [2022-12-14 06:57:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2022-12-14 06:57:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3093. [2022-12-14 06:57:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 1865 states have (on average 1.2943699731903486) internal successors, (2414), 1989 states have internal predecessors, (2414), 1061 states have call successors, (1061), 143 states have call predecessors, (1061), 142 states have return successors, (1059), 1057 states have call predecessors, (1059), 1059 states have call successors, (1059) [2022-12-14 06:57:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4534 transitions. [2022-12-14 06:57:25,096 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4534 transitions. Word has length 64 [2022-12-14 06:57:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:25,097 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4534 transitions. [2022-12-14 06:57:25,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:57:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4534 transitions. [2022-12-14 06:57:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 06:57:25,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:25,098 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:25,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:57:25,098 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 23 more)] === [2022-12-14 06:57:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1333686192, now seen corresponding path program 1 times [2022-12-14 06:57:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:25,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993406504] [2022-12-14 06:57:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:57:25,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:25,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993406504] [2022-12-14 06:57:25,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993406504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:25,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:25,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:57:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322036935] [2022-12-14 06:57:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:25,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:57:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:57:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:57:25,880 INFO L87 Difference]: Start difference. First operand 3093 states and 4534 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:28,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:30,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:32,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:34,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:36,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:39,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:42,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:44,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:45,120 INFO L93 Difference]: Finished difference Result 3204 states and 4674 transitions. [2022-12-14 06:57:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:57:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 69 [2022-12-14 06:57:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:45,132 INFO L225 Difference]: With dead ends: 3204 [2022-12-14 06:57:45,132 INFO L226 Difference]: Without dead ends: 3202 [2022-12-14 06:57:45,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:57:45,134 INFO L413 NwaCegarLoop]: 2788 mSDtfsCounter, 2686 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 6062 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:45,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 6062 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 7 Unknown, 0 Unchecked, 19.1s Time] [2022-12-14 06:57:45,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2022-12-14 06:57:45,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3200. [2022-12-14 06:57:45,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 1930 states have (on average 1.2911917098445596) internal successors, (2492), 2053 states have internal predecessors, (2492), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:57:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4668 transitions. [2022-12-14 06:57:45,275 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4668 transitions. Word has length 69 [2022-12-14 06:57:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:45,276 INFO L495 AbstractCegarLoop]: Abstraction has 3200 states and 4668 transitions. [2022-12-14 06:57:45,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:57:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4668 transitions. [2022-12-14 06:57:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 06:57:45,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:45,277 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:45,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:57:45,277 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 23 more)] === [2022-12-14 06:57:45,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash -594704552, now seen corresponding path program 1 times [2022-12-14 06:57:45,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:45,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228302856] [2022-12-14 06:57:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:45,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:57:45,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:45,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228302856] [2022-12-14 06:57:45,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228302856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:45,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:45,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:57:45,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556640120] [2022-12-14 06:57:45,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:45,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:57:45,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:45,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:57:45,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:57:45,977 INFO L87 Difference]: Start difference. First operand 3200 states and 4668 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:57:48,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:50,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:52,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:54,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:56,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:57:59,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:02,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:04,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:58:05,052 INFO L93 Difference]: Finished difference Result 3202 states and 4671 transitions. [2022-12-14 06:58:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:58:05,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-12-14 06:58:05,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:58:05,063 INFO L225 Difference]: With dead ends: 3202 [2022-12-14 06:58:05,063 INFO L226 Difference]: Without dead ends: 3200 [2022-12-14 06:58:05,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:58:05,065 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 2683 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:58:05,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 6058 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 7 Unknown, 0 Unchecked, 18.9s Time] [2022-12-14 06:58:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-12-14 06:58:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3198. [2022-12-14 06:58:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 1929 states have (on average 1.2903058579574909) internal successors, (2489), 2051 states have internal predecessors, (2489), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:58:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4665 transitions. [2022-12-14 06:58:05,210 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4665 transitions. Word has length 74 [2022-12-14 06:58:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:58:05,210 INFO L495 AbstractCegarLoop]: Abstraction has 3198 states and 4665 transitions. [2022-12-14 06:58:05,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:58:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4665 transitions. [2022-12-14 06:58:05,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:58:05,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:58:05,212 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:58:05,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:58:05,213 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 23 more)] === [2022-12-14 06:58:05,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:58:05,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1305858669, now seen corresponding path program 1 times [2022-12-14 06:58:05,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:58:05,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209474125] [2022-12-14 06:58:05,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:58:05,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:58:05,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:05,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209474125] [2022-12-14 06:58:05,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209474125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:05,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:05,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:58:05,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705755355] [2022-12-14 06:58:05,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:05,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:58:05,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:58:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:58:05,871 INFO L87 Difference]: Start difference. First operand 3198 states and 4665 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:58:08,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:10,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:12,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:14,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:16,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:19,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:21,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:23,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:25,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:28,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:58:29,025 INFO L93 Difference]: Finished difference Result 3200 states and 4668 transitions. [2022-12-14 06:58:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:58:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 79 [2022-12-14 06:58:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:58:29,034 INFO L225 Difference]: With dead ends: 3200 [2022-12-14 06:58:29,034 INFO L226 Difference]: Without dead ends: 3198 [2022-12-14 06:58:29,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:58:29,035 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 2680 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 6054 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:58:29,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2684 Valid, 6054 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 9 Unknown, 0 Unchecked, 23.0s Time] [2022-12-14 06:58:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2022-12-14 06:58:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3196. [2022-12-14 06:58:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 1928 states have (on average 1.2894190871369295) internal successors, (2486), 2049 states have internal predecessors, (2486), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:58:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4662 transitions. [2022-12-14 06:58:29,264 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4662 transitions. Word has length 79 [2022-12-14 06:58:29,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:58:29,264 INFO L495 AbstractCegarLoop]: Abstraction has 3196 states and 4662 transitions. [2022-12-14 06:58:29,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:58:29,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4662 transitions. [2022-12-14 06:58:29,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 06:58:29,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:58:29,267 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:58:29,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:58:29,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2022-12-14 06:58:29,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:58:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash -960740706, now seen corresponding path program 1 times [2022-12-14 06:58:29,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:58:29,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512475277] [2022-12-14 06:58:29,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:58:29,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-12-14 06:58:30,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:30,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512475277] [2022-12-14 06:58:30,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512475277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:30,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:30,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:58:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142837190] [2022-12-14 06:58:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:30,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:58:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:30,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:58:30,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:58:30,068 INFO L87 Difference]: Start difference. First operand 3196 states and 4662 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:58:32,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:34,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:36,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:38,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:40,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:43,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:44,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:46,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:48,337 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 [] [2022-12-14 06:58:48,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:58:48,880 INFO L93 Difference]: Finished difference Result 6410 states and 9318 transitions. [2022-12-14 06:58:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:58:48,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2022-12-14 06:58:48,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:58:48,904 INFO L225 Difference]: With dead ends: 6410 [2022-12-14 06:58:48,904 INFO L226 Difference]: Without dead ends: 3230 [2022-12-14 06:58:48,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:58:48,919 INFO L413 NwaCegarLoop]: 3089 mSDtfsCounter, 2661 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 4759 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:58:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 4759 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 521 Invalid, 7 Unknown, 0 Unchecked, 18.6s Time] [2022-12-14 06:58:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-12-14 06:58:49,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3192. [2022-12-14 06:58:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 1925 states have (on average 1.2888311688311689) internal successors, (2481), 2045 states have internal predecessors, (2481), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:58:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4657 transitions. [2022-12-14 06:58:49,121 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4657 transitions. Word has length 92 [2022-12-14 06:58:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:58:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4657 transitions. [2022-12-14 06:58:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:58:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4657 transitions. [2022-12-14 06:58:49,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:58:49,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:58:49,124 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:58:49,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:58:49,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 23 more)] === [2022-12-14 06:58:49,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:58:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1769793859, now seen corresponding path program 1 times [2022-12-14 06:58:49,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:58:49,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269191615] [2022-12-14 06:58:49,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:58:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:58:49,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:49,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269191615] [2022-12-14 06:58:49,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269191615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:49,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:49,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:58:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198577713] [2022-12-14 06:58:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:49,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:58:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:58:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:58:49,978 INFO L87 Difference]: Start difference. First operand 3192 states and 4657 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:58:52,600 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 [] [2022-12-14 06:58:54,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:56,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:58:58,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:00,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:03,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:06,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:08,604 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 [] [2022-12-14 06:59:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:09,243 INFO L93 Difference]: Finished difference Result 3230 states and 4680 transitions. [2022-12-14 06:59:09,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:59:09,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-12-14 06:59:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:09,258 INFO L225 Difference]: With dead ends: 3230 [2022-12-14 06:59:09,258 INFO L226 Difference]: Without dead ends: 3228 [2022-12-14 06:59:09,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:59:09,260 INFO L413 NwaCegarLoop]: 3088 mSDtfsCounter, 2646 mSDsluCounter, 4752 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 7840 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:09,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 7840 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 19.0s Time] [2022-12-14 06:59:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2022-12-14 06:59:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3192. [2022-12-14 06:59:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 1925 states have (on average 1.2883116883116883) internal successors, (2480), 2045 states have internal predecessors, (2480), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:59:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4656 transitions. [2022-12-14 06:59:09,425 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4656 transitions. Word has length 84 [2022-12-14 06:59:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:09,425 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4656 transitions. [2022-12-14 06:59:09,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:59:09,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4656 transitions. [2022-12-14 06:59:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 06:59:09,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:09,426 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:59:09,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:59:09,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 23 more)] === [2022-12-14 06:59:09,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash -34969018, now seen corresponding path program 1 times [2022-12-14 06:59:09,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:09,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869891003] [2022-12-14 06:59:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:09,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:59:10,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869891003] [2022-12-14 06:59:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869891003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:10,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:59:10,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:59:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256513346] [2022-12-14 06:59:10,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:59:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:59:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:59:10,148 INFO L87 Difference]: Start difference. First operand 3192 states and 4656 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:59:12,864 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 [] [2022-12-14 06:59:14,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:16,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:18,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:20,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:23,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:27,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:29,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:30,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:30,219 INFO L93 Difference]: Finished difference Result 3228 states and 4678 transitions. [2022-12-14 06:59:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:59:30,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 86 [2022-12-14 06:59:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:30,230 INFO L225 Difference]: With dead ends: 3228 [2022-12-14 06:59:30,231 INFO L226 Difference]: Without dead ends: 3226 [2022-12-14 06:59:30,231 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 [2022-12-14 06:59:30,232 INFO L413 NwaCegarLoop]: 3088 mSDtfsCounter, 2634 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 7844 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:30,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 7844 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 19.8s Time] [2022-12-14 06:59:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-12-14 06:59:30,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3192. [2022-12-14 06:59:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 1925 states have (on average 1.2877922077922077) internal successors, (2479), 2045 states have internal predecessors, (2479), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:59:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4655 transitions. [2022-12-14 06:59:30,381 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4655 transitions. Word has length 86 [2022-12-14 06:59:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:30,382 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 4655 transitions. [2022-12-14 06:59:30,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:59:30,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4655 transitions. [2022-12-14 06:59:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 06:59:30,383 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:30,383 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:59:30,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:59:30,383 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2022-12-14 06:59:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1465244362, now seen corresponding path program 1 times [2022-12-14 06:59:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:30,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404572486] [2022-12-14 06:59:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:30,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-14 06:59:30,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:30,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404572486] [2022-12-14 06:59:30,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404572486] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:59:30,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930085388] [2022-12-14 06:59:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:30,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:59:30,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:59:30,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:59:30,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:59:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:32,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 9707 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:59:32,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:59:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 06:59:32,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:59:32,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930085388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:32,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:59:32,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 06:59:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169582368] [2022-12-14 06:59:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:59:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:32,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:59:32,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:59:32,994 INFO L87 Difference]: Start difference. First operand 3192 states and 4655 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:59:35,535 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 [] [2022-12-14 06:59:37,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:39,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:41,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:43,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:46,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:48,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:50,267 INFO L93 Difference]: Finished difference Result 6366 states and 9284 transitions. [2022-12-14 06:59:50,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:59:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 97 [2022-12-14 06:59:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:50,282 INFO L225 Difference]: With dead ends: 6366 [2022-12-14 06:59:50,282 INFO L226 Difference]: Without dead ends: 3190 [2022-12-14 06:59:50,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:59:50,301 INFO L413 NwaCegarLoop]: 2775 mSDtfsCounter, 2670 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:50,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 3261 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 379 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2022-12-14 06:59:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2022-12-14 06:59:50,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3188. [2022-12-14 06:59:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 1922 states have (on average 1.287200832466181) internal successors, (2474), 2041 states have internal predecessors, (2474), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 06:59:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 4650 transitions. [2022-12-14 06:59:50,475 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 4650 transitions. Word has length 97 [2022-12-14 06:59:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:50,475 INFO L495 AbstractCegarLoop]: Abstraction has 3188 states and 4650 transitions. [2022-12-14 06:59:50,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 06:59:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 4650 transitions. [2022-12-14 06:59:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 06:59:50,476 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:50,476 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:59:50,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:59:50,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd2fe52a-8b39-48ae-9029-8fd4df01231f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:59:50,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2022-12-14 06:59:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:50,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1665316312, now seen corresponding path program 1 times [2022-12-14 06:59:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:50,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091990793] [2022-12-14 06:59:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:50,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:59:51,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:51,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091990793] [2022-12-14 06:59:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091990793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:51,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:59:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:59:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94320637] [2022-12-14 06:59:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:51,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:59:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:59:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:59:51,422 INFO L87 Difference]: Start difference. First operand 3188 states and 4650 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:59:53,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:56,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:59:58,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:00,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:02,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:05,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:07,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:09,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:11,748 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 [] [2022-12-14 07:00:12,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:12,117 INFO L93 Difference]: Finished difference Result 3190 states and 4653 transitions. [2022-12-14 07:00:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:00:12,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-12-14 07:00:12,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:12,126 INFO L225 Difference]: With dead ends: 3190 [2022-12-14 07:00:12,127 INFO L226 Difference]: Without dead ends: 3188 [2022-12-14 07:00:12,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:00:12,129 INFO L413 NwaCegarLoop]: 2772 mSDtfsCounter, 2666 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:12,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 6030 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 8 Unknown, 0 Unchecked, 20.4s Time] [2022-12-14 07:00:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2022-12-14 07:00:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2022-12-14 07:00:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 1921 states have (on average 1.2863092139510672) internal successors, (2471), 2039 states have internal predecessors, (2471), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:00:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 4647 transitions. [2022-12-14 07:00:12,306 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 4647 transitions. Word has length 91 [2022-12-14 07:00:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:12,306 INFO L495 AbstractCegarLoop]: Abstraction has 3186 states and 4647 transitions. [2022-12-14 07:00:12,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 07:00:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 4647 transitions. [2022-12-14 07:00:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 07:00:12,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:12,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:12,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:00:12,308 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2022-12-14 07:00:12,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash 533826591, now seen corresponding path program 1 times [2022-12-14 07:00:12,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:12,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329349349] [2022-12-14 07:00:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:00:13,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:13,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329349349] [2022-12-14 07:00:13,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329349349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:13,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:13,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:00:13,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428926985] [2022-12-14 07:00:13,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:13,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:00:13,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:13,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:00:13,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:00:13,004 INFO L87 Difference]: Start difference. First operand 3186 states and 4647 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:00:15,513 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 [] [2022-12-14 07:00:17,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:19,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:21,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:23,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:25,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:27,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:29,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:32,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:32,674 INFO L93 Difference]: Finished difference Result 3218 states and 4667 transitions. [2022-12-14 07:00:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:00:32,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2022-12-14 07:00:32,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:32,683 INFO L225 Difference]: With dead ends: 3218 [2022-12-14 07:00:32,683 INFO L226 Difference]: Without dead ends: 3216 [2022-12-14 07:00:32,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:00:32,685 INFO L413 NwaCegarLoop]: 3081 mSDtfsCounter, 2625 mSDsluCounter, 4747 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 7828 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:32,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 7828 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 19.4s Time] [2022-12-14 07:00:32,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2022-12-14 07:00:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 3186. [2022-12-14 07:00:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 1921 states have (on average 1.2857886517438835) internal successors, (2470), 2039 states have internal predecessors, (2470), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:00:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 4646 transitions. [2022-12-14 07:00:32,870 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 4646 transitions. Word has length 96 [2022-12-14 07:00:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:32,870 INFO L495 AbstractCegarLoop]: Abstraction has 3186 states and 4646 transitions. [2022-12-14 07:00:32,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:00:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 4646 transitions. [2022-12-14 07:00:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 07:00:32,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:32,872 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:32,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 07:00:32,872 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2022-12-14 07:00:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1037914955, now seen corresponding path program 1 times [2022-12-14 07:00:32,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:32,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962099195] [2022-12-14 07:00:32,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:32,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:00:33,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:33,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962099195] [2022-12-14 07:00:33,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962099195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:33,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:33,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:00:33,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457407662] [2022-12-14 07:00:33,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:33,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:00:33,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:33,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:00:33,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:00:33,529 INFO L87 Difference]: Start difference. First operand 3186 states and 4646 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:00:36,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:38,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:40,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:42,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:44,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:46,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:49,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:52,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:52,866 INFO L93 Difference]: Finished difference Result 3216 states and 4665 transitions. [2022-12-14 07:00:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:00:52,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-12-14 07:00:52,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:52,875 INFO L225 Difference]: With dead ends: 3216 [2022-12-14 07:00:52,875 INFO L226 Difference]: Without dead ends: 3214 [2022-12-14 07:00:52,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:00:52,877 INFO L413 NwaCegarLoop]: 3081 mSDtfsCounter, 2622 mSDsluCounter, 4747 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 7828 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:52,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 7828 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 19.0s Time] [2022-12-14 07:00:52,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214 states. [2022-12-14 07:00:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214 to 3186. [2022-12-14 07:00:53,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 1921 states have (on average 1.2852680895366997) internal successors, (2469), 2039 states have internal predecessors, (2469), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:00:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 4645 transitions. [2022-12-14 07:00:53,070 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 4645 transitions. Word has length 101 [2022-12-14 07:00:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:53,071 INFO L495 AbstractCegarLoop]: Abstraction has 3186 states and 4645 transitions. [2022-12-14 07:00:53,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:00:53,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 4645 transitions. [2022-12-14 07:00:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 07:00:53,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:53,072 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:53,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 07:00:53,072 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 23 more)] === [2022-12-14 07:00:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1476062369, now seen corresponding path program 1 times [2022-12-14 07:00:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:53,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588287545] [2022-12-14 07:00:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:00:53,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:53,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588287545] [2022-12-14 07:00:53,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588287545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:53,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:53,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:00:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100289251] [2022-12-14 07:00:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:53,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:00:53,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:53,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:00:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:00:53,778 INFO L87 Difference]: Start difference. First operand 3186 states and 4645 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 07:00:56,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:00:58,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:00,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:02,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:04,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:08,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:10,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:12,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:14,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:17,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:17,740 INFO L93 Difference]: Finished difference Result 3188 states and 4648 transitions. [2022-12-14 07:01:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:01:17,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2022-12-14 07:01:17,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:17,750 INFO L225 Difference]: With dead ends: 3188 [2022-12-14 07:01:17,750 INFO L226 Difference]: Without dead ends: 3186 [2022-12-14 07:01:17,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:01:17,752 INFO L413 NwaCegarLoop]: 2770 mSDtfsCounter, 2661 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 6026 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:17,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 6026 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 703 Invalid, 8 Unknown, 0 Unchecked, 23.7s Time] [2022-12-14 07:01:17,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2022-12-14 07:01:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3184. [2022-12-14 07:01:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 1920 states have (on average 1.284375) internal successors, (2466), 2037 states have internal predecessors, (2466), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:01:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4642 transitions. [2022-12-14 07:01:18,056 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4642 transitions. Word has length 106 [2022-12-14 07:01:18,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:18,056 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 4642 transitions. [2022-12-14 07:01:18,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 07:01:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4642 transitions. [2022-12-14 07:01:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 07:01:18,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:18,059 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:18,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 07:01:18,060 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 23 more)] === [2022-12-14 07:01:18,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:18,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1837149256, now seen corresponding path program 1 times [2022-12-14 07:01:18,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:18,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366309781] [2022-12-14 07:01:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:18,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:01:18,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:18,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366309781] [2022-12-14 07:01:18,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366309781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:18,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:18,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:01:18,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797712135] [2022-12-14 07:01:18,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:18,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:01:18,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:18,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:01:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:01:18,815 INFO L87 Difference]: Start difference. First operand 3184 states and 4642 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 07:01:21,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:23,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:25,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:27,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:29,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:31,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:34,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:37,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:37,760 INFO L93 Difference]: Finished difference Result 3210 states and 4659 transitions. [2022-12-14 07:01:37,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:01:37,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-12-14 07:01:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:37,769 INFO L225 Difference]: With dead ends: 3210 [2022-12-14 07:01:37,770 INFO L226 Difference]: Without dead ends: 3208 [2022-12-14 07:01:37,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:01:37,772 INFO L413 NwaCegarLoop]: 3079 mSDtfsCounter, 2616 mSDsluCounter, 4743 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2620 SdHoareTripleChecker+Valid, 7822 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:37,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2620 Valid, 7822 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 18.7s Time] [2022-12-14 07:01:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-12-14 07:01:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3184. [2022-12-14 07:01:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 1920 states have (on average 1.2838541666666667) internal successors, (2465), 2037 states have internal predecessors, (2465), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:01:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4641 transitions. [2022-12-14 07:01:38,018 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4641 transitions. Word has length 111 [2022-12-14 07:01:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:38,019 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 4641 transitions. [2022-12-14 07:01:38,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 07:01:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4641 transitions. [2022-12-14 07:01:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 07:01:38,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:38,020 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:38,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 07:01:38,021 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 23 more)] === [2022-12-14 07:01:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1506477149, now seen corresponding path program 1 times [2022-12-14 07:01:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:38,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312843651] [2022-12-14 07:01:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:01:38,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:38,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312843651] [2022-12-14 07:01:38,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312843651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:38,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:38,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:01:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560858216] [2022-12-14 07:01:38,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:38,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:01:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:38,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:01:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:01:38,741 INFO L87 Difference]: Start difference. First operand 3184 states and 4641 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:01:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:43,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:45,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:47,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:49,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:52,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:55,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:57,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:01:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:57,939 INFO L93 Difference]: Finished difference Result 3208 states and 4657 transitions. [2022-12-14 07:01:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:01:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-12-14 07:01:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:57,948 INFO L225 Difference]: With dead ends: 3208 [2022-12-14 07:01:57,948 INFO L226 Difference]: Without dead ends: 3206 [2022-12-14 07:01:57,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:01:57,950 INFO L413 NwaCegarLoop]: 3079 mSDtfsCounter, 2613 mSDsluCounter, 4743 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 7822 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:57,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2617 Valid, 7822 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 18.9s Time] [2022-12-14 07:01:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-12-14 07:01:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3184. [2022-12-14 07:01:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 1920 states have (on average 1.2833333333333334) internal successors, (2464), 2037 states have internal predecessors, (2464), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:01:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4640 transitions. [2022-12-14 07:01:58,177 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4640 transitions. Word has length 116 [2022-12-14 07:01:58,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:58,177 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 4640 transitions. [2022-12-14 07:01:58,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:01:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4640 transitions. [2022-12-14 07:01:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 07:01:58,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:58,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 07:01:58,179 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 23 more)] === [2022-12-14 07:01:58,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:58,179 INFO L85 PathProgramCache]: Analyzing trace with hash 445024214, now seen corresponding path program 1 times [2022-12-14 07:01:58,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:58,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427117812] [2022-12-14 07:01:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:58,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:01:59,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427117812] [2022-12-14 07:01:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427117812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:59,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:59,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:01:59,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907709791] [2022-12-14 07:01:59,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:59,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:01:59,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:01:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:01:59,762 INFO L87 Difference]: Start difference. First operand 3184 states and 4640 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:02:02,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:04,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:06,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:08,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:10,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:14,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:16,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:19,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:19,897 INFO L93 Difference]: Finished difference Result 3186 states and 4643 transitions. [2022-12-14 07:02:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:02:19,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 121 [2022-12-14 07:02:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:19,905 INFO L225 Difference]: With dead ends: 3186 [2022-12-14 07:02:19,906 INFO L226 Difference]: Without dead ends: 3184 [2022-12-14 07:02:19,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:02:19,907 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2656 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:19,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 6022 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 8 Unknown, 0 Unchecked, 19.7s Time] [2022-12-14 07:02:19,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2022-12-14 07:02:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3182. [2022-12-14 07:02:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 1919 states have (on average 1.2824387701928088) internal successors, (2461), 2035 states have internal predecessors, (2461), 1089 states have call successors, (1089), 158 states have call predecessors, (1089), 157 states have return successors, (1087), 1085 states have call predecessors, (1087), 1087 states have call successors, (1087) [2022-12-14 07:02:20,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 4637 transitions. [2022-12-14 07:02:20,142 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 4637 transitions. Word has length 121 [2022-12-14 07:02:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:20,143 INFO L495 AbstractCegarLoop]: Abstraction has 3182 states and 4637 transitions. [2022-12-14 07:02:20,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:02:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 4637 transitions. [2022-12-14 07:02:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 07:02:20,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:20,145 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:20,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 07:02:20,145 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 23 more)] === [2022-12-14 07:02:20,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:20,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1453065006, now seen corresponding path program 1 times [2022-12-14 07:02:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:20,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631816574] [2022-12-14 07:02:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-12-14 07:02:21,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:21,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631816574] [2022-12-14 07:02:21,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631816574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:21,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:02:21,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:02:21,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764482424] [2022-12-14 07:02:21,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:21,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:02:21,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:02:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:02:21,618 INFO L87 Difference]: Start difference. First operand 3182 states and 4637 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:02:24,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:26,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:28,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:30,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:32,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:35,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:39,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:41,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:43,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:44,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:47,761 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 [] [2022-12-14 07:02:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:48,883 INFO L93 Difference]: Finished difference Result 3360 states and 4847 transitions. [2022-12-14 07:02:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:02:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2022-12-14 07:02:48,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:48,891 INFO L225 Difference]: With dead ends: 3360 [2022-12-14 07:02:48,891 INFO L226 Difference]: Without dead ends: 3358 [2022-12-14 07:02:48,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:02:48,892 INFO L413 NwaCegarLoop]: 2742 mSDtfsCounter, 1948 mSDsluCounter, 6558 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 9300 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:48,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 9300 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1102 Invalid, 8 Unknown, 0 Unchecked, 26.9s Time] [2022-12-14 07:02:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-12-14 07:02:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3356. [2022-12-14 07:02:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 2018 states have (on average 1.277998017839445) internal successors, (2579), 2134 states have internal predecessors, (2579), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:02:49,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 4841 transitions. [2022-12-14 07:02:49,136 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 4841 transitions. Word has length 141 [2022-12-14 07:02:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:49,137 INFO L495 AbstractCegarLoop]: Abstraction has 3356 states and 4841 transitions. [2022-12-14 07:02:49,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:02:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 4841 transitions. [2022-12-14 07:02:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-14 07:02:49,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:49,138 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:49,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 07:02:49,138 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 23 more)] === [2022-12-14 07:02:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash 793443848, now seen corresponding path program 1 times [2022-12-14 07:02:49,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:49,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248719661] [2022-12-14 07:02:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:49,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:02:49,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:49,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248719661] [2022-12-14 07:02:49,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248719661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:49,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:02:49,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:02:49,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176420452] [2022-12-14 07:02:49,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:49,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:02:49,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:49,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:02:49,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:02:49,806 INFO L87 Difference]: Start difference. First operand 3356 states and 4841 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 07:02:52,327 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 [] [2022-12-14 07:02:54,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:56,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:02:58,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:00,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:03,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:07,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:09,363 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 [] [2022-12-14 07:03:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:10,091 INFO L93 Difference]: Finished difference Result 3374 states and 4854 transitions. [2022-12-14 07:03:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:03:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 126 [2022-12-14 07:03:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:10,098 INFO L225 Difference]: With dead ends: 3374 [2022-12-14 07:03:10,098 INFO L226 Difference]: Without dead ends: 3372 [2022-12-14 07:03:10,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:10,100 INFO L413 NwaCegarLoop]: 3064 mSDtfsCounter, 2605 mSDsluCounter, 4724 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2609 SdHoareTripleChecker+Valid, 7788 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:10,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2609 Valid, 7788 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 844 Invalid, 8 Unknown, 0 Unchecked, 19.9s Time] [2022-12-14 07:03:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2022-12-14 07:03:10,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 3356. [2022-12-14 07:03:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 2018 states have (on average 1.2775024777006938) internal successors, (2578), 2134 states have internal predecessors, (2578), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:03:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 4840 transitions. [2022-12-14 07:03:10,360 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 4840 transitions. Word has length 126 [2022-12-14 07:03:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:10,360 INFO L495 AbstractCegarLoop]: Abstraction has 3356 states and 4840 transitions. [2022-12-14 07:03:10,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 07:03:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 4840 transitions. [2022-12-14 07:03:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 07:03:10,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:10,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:10,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 07:03:10,362 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 23 more)] === [2022-12-14 07:03:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1759347561, now seen corresponding path program 1 times [2022-12-14 07:03:10,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:10,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151716780] [2022-12-14 07:03:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:10,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:03:11,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:11,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151716780] [2022-12-14 07:03:11,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151716780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:11,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:11,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:03:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987093137] [2022-12-14 07:03:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:11,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:03:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:03:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:03:11,020 INFO L87 Difference]: Start difference. First operand 3356 states and 4840 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:03:13,655 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 [] [2022-12-14 07:03:15,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:17,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:19,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:21,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:24,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:28,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:31,315 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 [] [2022-12-14 07:03:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:31,720 INFO L93 Difference]: Finished difference Result 3358 states and 4843 transitions. [2022-12-14 07:03:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:03:31,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 131 [2022-12-14 07:03:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:31,727 INFO L225 Difference]: With dead ends: 3358 [2022-12-14 07:03:31,727 INFO L226 Difference]: Without dead ends: 3356 [2022-12-14 07:03:31,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:31,729 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 2650 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:31,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 6014 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 8 Unknown, 0 Unchecked, 20.3s Time] [2022-12-14 07:03:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2022-12-14 07:03:31,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3354. [2022-12-14 07:03:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 2017 states have (on average 1.2766484878532474) internal successors, (2575), 2132 states have internal predecessors, (2575), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:03:31,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 4837 transitions. [2022-12-14 07:03:31,992 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 4837 transitions. Word has length 131 [2022-12-14 07:03:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:31,992 INFO L495 AbstractCegarLoop]: Abstraction has 3354 states and 4837 transitions. [2022-12-14 07:03:31,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:03:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 4837 transitions. [2022-12-14 07:03:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-14 07:03:31,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:31,994 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:31,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 07:03:31,994 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 23 more)] === [2022-12-14 07:03:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1216876366, now seen corresponding path program 1 times [2022-12-14 07:03:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870457160] [2022-12-14 07:03:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:31,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:03:32,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:32,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870457160] [2022-12-14 07:03:32,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870457160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:32,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:32,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:03:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160672334] [2022-12-14 07:03:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:32,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:03:32,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:32,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:03:32,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:03:32,656 INFO L87 Difference]: Start difference. First operand 3354 states and 4837 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:03:35,266 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 [] [2022-12-14 07:03:37,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:39,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:41,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:43,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:47,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:49,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:52,244 INFO L93 Difference]: Finished difference Result 3356 states and 4840 transitions. [2022-12-14 07:03:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:03:52,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2022-12-14 07:03:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:52,251 INFO L225 Difference]: With dead ends: 3356 [2022-12-14 07:03:52,251 INFO L226 Difference]: Without dead ends: 3354 [2022-12-14 07:03:52,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:52,252 INFO L413 NwaCegarLoop]: 2762 mSDtfsCounter, 2647 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:52,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 6010 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 7 Unknown, 0 Unchecked, 19.2s Time] [2022-12-14 07:03:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2022-12-14 07:03:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3352. [2022-12-14 07:03:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 2016 states have (on average 1.2757936507936507) internal successors, (2572), 2130 states have internal predecessors, (2572), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:03:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 4834 transitions. [2022-12-14 07:03:52,529 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 4834 transitions. Word has length 136 [2022-12-14 07:03:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:52,529 INFO L495 AbstractCegarLoop]: Abstraction has 3352 states and 4834 transitions. [2022-12-14 07:03:52,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:03:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 4834 transitions. [2022-12-14 07:03:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 07:03:52,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:52,531 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:52,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 07:03:52,531 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 23 more)] === [2022-12-14 07:03:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2075822212, now seen corresponding path program 1 times [2022-12-14 07:03:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:52,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813769070] [2022-12-14 07:03:52,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-12-14 07:03:53,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:53,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813769070] [2022-12-14 07:03:53,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813769070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:53,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:53,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:03:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878288509] [2022-12-14 07:03:53,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:53,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:03:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:03:53,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:53,579 INFO L87 Difference]: Start difference. First operand 3352 states and 4834 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 07:03:56,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:03:58,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:00,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:02,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:04,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:07,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:08,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:12,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:14,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:15,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:16,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:19,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:19,622 INFO L93 Difference]: Finished difference Result 3352 states and 4834 transitions. [2022-12-14 07:04:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:04:19,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 155 [2022-12-14 07:04:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:19,632 INFO L225 Difference]: With dead ends: 3352 [2022-12-14 07:04:19,632 INFO L226 Difference]: Without dead ends: 3350 [2022-12-14 07:04:19,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:04:19,634 INFO L413 NwaCegarLoop]: 2845 mSDtfsCounter, 833 mSDsluCounter, 7815 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 10660 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:19,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 10660 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1304 Invalid, 7 Unknown, 0 Unchecked, 25.6s Time] [2022-12-14 07:04:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2022-12-14 07:04:19,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3350. [2022-12-14 07:04:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 2015 states have (on average 1.274937965260546) internal successors, (2569), 2128 states have internal predecessors, (2569), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:04:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4831 transitions. [2022-12-14 07:04:19,921 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4831 transitions. Word has length 155 [2022-12-14 07:04:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:19,922 INFO L495 AbstractCegarLoop]: Abstraction has 3350 states and 4831 transitions. [2022-12-14 07:04:19,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 07:04:19,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4831 transitions. [2022-12-14 07:04:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 07:04:19,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:19,924 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:19,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 07:04:19,924 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 23 more)] === [2022-12-14 07:04:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash 192178259, now seen corresponding path program 1 times [2022-12-14 07:04:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:19,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817478476] [2022-12-14 07:04:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:19,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:04:20,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:20,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817478476] [2022-12-14 07:04:20,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817478476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:20,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:20,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:04:20,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834688303] [2022-12-14 07:04:20,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:20,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:20,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:20,642 INFO L87 Difference]: Start difference. First operand 3350 states and 4831 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 07:04:23,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:25,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:27,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:29,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:31,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:33,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:36,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:38,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:40,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:43,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:43,871 INFO L93 Difference]: Finished difference Result 3360 states and 4840 transitions. [2022-12-14 07:04:43,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:04:43,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 141 [2022-12-14 07:04:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:43,881 INFO L225 Difference]: With dead ends: 3360 [2022-12-14 07:04:43,881 INFO L226 Difference]: Without dead ends: 3358 [2022-12-14 07:04:43,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:43,883 INFO L413 NwaCegarLoop]: 3058 mSDtfsCounter, 2594 mSDsluCounter, 4712 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:43,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 7770 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 845 Invalid, 9 Unknown, 0 Unchecked, 22.9s Time] [2022-12-14 07:04:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-12-14 07:04:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3350. [2022-12-14 07:04:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 2015 states have (on average 1.2744416873449131) internal successors, (2568), 2128 states have internal predecessors, (2568), 1132 states have call successors, (1132), 191 states have call predecessors, (1132), 190 states have return successors, (1130), 1128 states have call predecessors, (1130), 1130 states have call successors, (1130) [2022-12-14 07:04:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4830 transitions. [2022-12-14 07:04:44,171 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4830 transitions. Word has length 141 [2022-12-14 07:04:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:44,171 INFO L495 AbstractCegarLoop]: Abstraction has 3350 states and 4830 transitions. [2022-12-14 07:04:44,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 07:04:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4830 transitions. [2022-12-14 07:04:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 07:04:44,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:44,174 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:44,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 07:04:44,174 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 23 more)] === [2022-12-14 07:04:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash 762661156, now seen corresponding path program 1 times [2022-12-14 07:04:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:44,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034012525] [2022-12-14 07:04:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:44,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:04:44,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:44,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034012525] [2022-12-14 07:04:44,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034012525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:44,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:44,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:04:44,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750924163] [2022-12-14 07:04:44,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:44,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:44,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:44,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:44,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:44,840 INFO L87 Difference]: Start difference. First operand 3350 states and 4830 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:04:47,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:49,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:51,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:53,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:55,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:04:57,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:00,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:02,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:04,911 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 [] [2022-12-14 07:05:05,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:05,402 INFO L93 Difference]: Finished difference Result 3352 states and 4833 transitions. [2022-12-14 07:05:05,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:05:05,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 146 [2022-12-14 07:05:05,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:05,411 INFO L225 Difference]: With dead ends: 3352 [2022-12-14 07:05:05,411 INFO L226 Difference]: Without dead ends: 2697 [2022-12-14 07:05:05,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:05:05,416 INFO L413 NwaCegarLoop]: 2748 mSDtfsCounter, 2641 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:05,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 5982 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 699 Invalid, 8 Unknown, 0 Unchecked, 20.1s Time] [2022-12-14 07:05:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2022-12-14 07:05:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2695. [2022-12-14 07:05:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 1653 states have (on average 1.2861464004839684) internal successors, (2126), 1730 states have internal predecessors, (2126), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:05:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 3853 transitions. [2022-12-14 07:05:05,633 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 3853 transitions. Word has length 146 [2022-12-14 07:05:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:05,633 INFO L495 AbstractCegarLoop]: Abstraction has 2695 states and 3853 transitions. [2022-12-14 07:05:05,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:05:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 3853 transitions. [2022-12-14 07:05:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2022-12-14 07:05:05,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:05,649 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:05,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 07:05:05,649 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 23 more)] === [2022-12-14 07:05:05,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:05,649 INFO L85 PathProgramCache]: Analyzing trace with hash 222243099, now seen corresponding path program 1 times [2022-12-14 07:05:05,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:05,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768039399] [2022-12-14 07:05:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:05:06,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:06,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768039399] [2022-12-14 07:05:06,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768039399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:06,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:06,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:05:06,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90282950] [2022-12-14 07:05:06,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:06,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:05:06,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:06,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:05:06,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:06,953 INFO L87 Difference]: Start difference. First operand 2695 states and 3853 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2022-12-14 07:05:09,470 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 [] [2022-12-14 07:05:11,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:13,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:15,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:17,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:19,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:21,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:23,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:25,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:27,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:29,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:30,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:30,230 INFO L93 Difference]: Finished difference Result 2697 states and 3856 transitions. [2022-12-14 07:05:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:05:30,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 826 [2022-12-14 07:05:30,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:30,240 INFO L225 Difference]: With dead ends: 2697 [2022-12-14 07:05:30,240 INFO L226 Difference]: Without dead ends: 2695 [2022-12-14 07:05:30,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:05:30,242 INFO L413 NwaCegarLoop]: 2708 mSDtfsCounter, 2427 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:30,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 5902 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 7 Unknown, 0 Unchecked, 22.9s Time] [2022-12-14 07:05:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-12-14 07:05:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2693. [2022-12-14 07:05:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 1652 states have (on average 1.2857142857142858) internal successors, (2124), 1728 states have internal predecessors, (2124), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:05:30,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3851 transitions. [2022-12-14 07:05:30,457 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3851 transitions. Word has length 826 [2022-12-14 07:05:30,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:30,458 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 3851 transitions. [2022-12-14 07:05:30,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2022-12-14 07:05:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3851 transitions. [2022-12-14 07:05:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2022-12-14 07:05:30,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:30,475 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:30,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 07:05:30,475 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 23 more)] === [2022-12-14 07:05:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 372934802, now seen corresponding path program 1 times [2022-12-14 07:05:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:30,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901914612] [2022-12-14 07:05:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:05:31,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:31,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901914612] [2022-12-14 07:05:31,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901914612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:31,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:31,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:05:31,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128153071] [2022-12-14 07:05:31,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:31,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:05:31,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:05:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:31,773 INFO L87 Difference]: Start difference. First operand 2693 states and 3851 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-12-14 07:05:34,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:36,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:38,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:40,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:42,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:44,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:48,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:50,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:51,155 INFO L93 Difference]: Finished difference Result 2695 states and 3854 transitions. [2022-12-14 07:05:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:05:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 831 [2022-12-14 07:05:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:51,166 INFO L225 Difference]: With dead ends: 2695 [2022-12-14 07:05:51,166 INFO L226 Difference]: Without dead ends: 2693 [2022-12-14 07:05:51,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:05:51,168 INFO L413 NwaCegarLoop]: 2706 mSDtfsCounter, 2424 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 5898 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:51,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 5898 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 8 Unknown, 0 Unchecked, 19.1s Time] [2022-12-14 07:05:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-12-14 07:05:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2691. [2022-12-14 07:05:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 1651 states have (on average 1.285281647486372) internal successors, (2122), 1726 states have internal predecessors, (2122), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:05:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3849 transitions. [2022-12-14 07:05:51,386 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3849 transitions. Word has length 831 [2022-12-14 07:05:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:51,387 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3849 transitions. [2022-12-14 07:05:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-12-14 07:05:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3849 transitions. [2022-12-14 07:05:51,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2022-12-14 07:05:51,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:51,403 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:51,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 07:05:51,403 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 23 more)] === [2022-12-14 07:05:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:51,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1220774443, now seen corresponding path program 1 times [2022-12-14 07:05:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:51,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350333956] [2022-12-14 07:05:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:51,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:05:52,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350333956] [2022-12-14 07:05:52,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350333956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:52,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:52,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:05:52,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972976141] [2022-12-14 07:05:52,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:52,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:05:52,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:52,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:05:52,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:52,695 INFO L87 Difference]: Start difference. First operand 2691 states and 3849 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2022-12-14 07:05:55,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:57,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:05:59,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:01,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:03,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:06,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:09,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:11,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:13,277 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 [] [2022-12-14 07:06:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:06:13,674 INFO L93 Difference]: Finished difference Result 2693 states and 3852 transitions. [2022-12-14 07:06:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:06:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 836 [2022-12-14 07:06:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:06:13,683 INFO L225 Difference]: With dead ends: 2693 [2022-12-14 07:06:13,683 INFO L226 Difference]: Without dead ends: 2691 [2022-12-14 07:06:13,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:06:13,684 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 2421 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:06:13,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2424 Valid, 5894 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 7 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 07:06:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-12-14 07:06:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2689. [2022-12-14 07:06:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 1650 states have (on average 1.284848484848485) internal successors, (2120), 1724 states have internal predecessors, (2120), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:06:13,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3847 transitions. [2022-12-14 07:06:13,900 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3847 transitions. Word has length 836 [2022-12-14 07:06:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:06:13,901 INFO L495 AbstractCegarLoop]: Abstraction has 2689 states and 3847 transitions. [2022-12-14 07:06:13,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2022-12-14 07:06:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3847 transitions. [2022-12-14 07:06:13,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-12-14 07:06:13,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:06:13,922 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:06:13,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 07:06:13,923 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 23 more)] === [2022-12-14 07:06:13,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:06:13,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1272634881, now seen corresponding path program 1 times [2022-12-14 07:06:13,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:06:13,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184734322] [2022-12-14 07:06:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:13,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:06:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:06:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:06:15,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:15,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184734322] [2022-12-14 07:06:15,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184734322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:06:15,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:06:15,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:06:15,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415136744] [2022-12-14 07:06:15,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:06:15,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:06:15,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:06:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:06:15,245 INFO L87 Difference]: Start difference. First operand 2689 states and 3847 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 07:06:17,757 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 [] [2022-12-14 07:06:19,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:21,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:23,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:25,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:31,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:33,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:06:34,466 INFO L93 Difference]: Finished difference Result 2691 states and 3850 transitions. [2022-12-14 07:06:34,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:06:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 841 [2022-12-14 07:06:34,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:06:34,475 INFO L225 Difference]: With dead ends: 2691 [2022-12-14 07:06:34,475 INFO L226 Difference]: Without dead ends: 2689 [2022-12-14 07:06:34,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:06:34,476 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 2418 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 5868 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:06:34,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2421 Valid, 5868 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 7 Unknown, 0 Unchecked, 18.8s Time] [2022-12-14 07:06:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2022-12-14 07:06:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2687. [2022-12-14 07:06:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 1649 states have (on average 1.2844147968465738) internal successors, (2118), 1722 states have internal predecessors, (2118), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:06:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 3845 transitions. [2022-12-14 07:06:34,701 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 3845 transitions. Word has length 841 [2022-12-14 07:06:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:06:34,701 INFO L495 AbstractCegarLoop]: Abstraction has 2687 states and 3845 transitions. [2022-12-14 07:06:34,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 07:06:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 3845 transitions. [2022-12-14 07:06:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2022-12-14 07:06:34,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:06:34,716 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:06:34,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 07:06:34,716 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 23 more)] === [2022-12-14 07:06:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:06:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -11993606, now seen corresponding path program 1 times [2022-12-14 07:06:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:06:34,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699024808] [2022-12-14 07:06:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:34,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:06:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:06:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:06:36,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:36,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699024808] [2022-12-14 07:06:36,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699024808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:06:36,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:06:36,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:06:36,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046755528] [2022-12-14 07:06:36,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:06:36,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:06:36,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:36,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:06:36,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:06:36,075 INFO L87 Difference]: Start difference. First operand 2687 states and 3845 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-12-14 07:06:38,759 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 [] [2022-12-14 07:06:40,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:42,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:44,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:46,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:49,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:52,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:54,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:06:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:06:55,198 INFO L93 Difference]: Finished difference Result 2689 states and 3848 transitions. [2022-12-14 07:06:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:06:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) Word has length 861 [2022-12-14 07:06:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:06:55,205 INFO L225 Difference]: With dead ends: 2689 [2022-12-14 07:06:55,206 INFO L226 Difference]: Without dead ends: 2687 [2022-12-14 07:06:55,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:06:55,207 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 2416 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:06:55,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 5882 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 8 Unknown, 0 Unchecked, 18.6s Time] [2022-12-14 07:06:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-12-14 07:06:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2685. [2022-12-14 07:06:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 1648 states have (on average 1.2839805825242718) internal successors, (2116), 1720 states have internal predecessors, (2116), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:06:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3843 transitions. [2022-12-14 07:06:55,423 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3843 transitions. Word has length 861 [2022-12-14 07:06:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:06:55,424 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 3843 transitions. [2022-12-14 07:06:55,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-12-14 07:06:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3843 transitions. [2022-12-14 07:06:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2022-12-14 07:06:55,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:06:55,439 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:06:55,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 07:06:55,439 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 23 more)] === [2022-12-14 07:06:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:06:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1359228221, now seen corresponding path program 1 times [2022-12-14 07:06:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:06:55,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775036751] [2022-12-14 07:06:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:55,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:06:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:06:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:06:56,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:56,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775036751] [2022-12-14 07:06:56,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775036751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:06:56,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:06:56,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:06:56,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689369706] [2022-12-14 07:06:56,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:06:56,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:06:56,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:56,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:06:56,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:06:56,728 INFO L87 Difference]: Start difference. First operand 2685 states and 3843 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-12-14 07:06:59,328 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 [] [2022-12-14 07:07:01,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:03,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:05,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:07,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:10,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:12,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:14,929 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 [] [2022-12-14 07:07:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:15,384 INFO L93 Difference]: Finished difference Result 2687 states and 3846 transitions. [2022-12-14 07:07:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:07:15,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) Word has length 863 [2022-12-14 07:07:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:15,392 INFO L225 Difference]: With dead ends: 2687 [2022-12-14 07:07:15,392 INFO L226 Difference]: Without dead ends: 2685 [2022-12-14 07:07:15,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:07:15,394 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2408 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:15,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5860 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 8 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 07:07:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-12-14 07:07:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2683. [2022-12-14 07:07:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 1647 states have (on average 1.2835458409228901) internal successors, (2114), 1718 states have internal predecessors, (2114), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:07:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 3841 transitions. [2022-12-14 07:07:15,619 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 3841 transitions. Word has length 863 [2022-12-14 07:07:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:15,620 INFO L495 AbstractCegarLoop]: Abstraction has 2683 states and 3841 transitions. [2022-12-14 07:07:15,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-12-14 07:07:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 3841 transitions. [2022-12-14 07:07:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2022-12-14 07:07:15,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:15,634 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:15,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 07:07:15,634 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 23 more)] === [2022-12-14 07:07:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:15,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1050277462, now seen corresponding path program 1 times [2022-12-14 07:07:15,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:15,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298422836] [2022-12-14 07:07:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:15,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:07:16,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:16,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298422836] [2022-12-14 07:07:16,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298422836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:16,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:16,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:07:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623574145] [2022-12-14 07:07:16,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:16,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:07:16,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:16,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:07:16,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:07:16,886 INFO L87 Difference]: Start difference. First operand 2683 states and 3841 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2022-12-14 07:07:19,453 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 [] [2022-12-14 07:07:21,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:23,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:25,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:27,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:31,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:33,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:35,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:37,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:38,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:40,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:41,365 INFO L93 Difference]: Finished difference Result 2685 states and 3844 transitions. [2022-12-14 07:07:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:07:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) Word has length 873 [2022-12-14 07:07:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:41,375 INFO L225 Difference]: With dead ends: 2685 [2022-12-14 07:07:41,375 INFO L226 Difference]: Without dead ends: 2683 [2022-12-14 07:07:41,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:07:41,376 INFO L413 NwaCegarLoop]: 2685 mSDtfsCounter, 2406 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:41,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 5856 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 9 Unknown, 0 Unchecked, 24.1s Time] [2022-12-14 07:07:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-12-14 07:07:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2681. [2022-12-14 07:07:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 1646 states have (on average 1.2831105710814095) internal successors, (2112), 1716 states have internal predecessors, (2112), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:07:41,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 3839 transitions. [2022-12-14 07:07:41,604 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 3839 transitions. Word has length 873 [2022-12-14 07:07:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:41,604 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 3839 transitions. [2022-12-14 07:07:41,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (95), 2 states have call predecessors, (95), 2 states have call successors, (95) [2022-12-14 07:07:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 3839 transitions. [2022-12-14 07:07:41,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-12-14 07:07:41,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:41,619 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:41,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 07:07:41,620 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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 23 more)] === [2022-12-14 07:07:41,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:41,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1960674572, now seen corresponding path program 1 times [2022-12-14 07:07:41,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:41,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371916477] [2022-12-14 07:07:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:41,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:07:42,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:42,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371916477] [2022-12-14 07:07:42,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371916477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:42,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:42,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:07:42,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336062875] [2022-12-14 07:07:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:42,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:07:42,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:07:42,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:07:42,875 INFO L87 Difference]: Start difference. First operand 2681 states and 3839 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-12-14 07:07:45,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:47,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:49,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:51,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:53,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:55,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:07:59,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:00,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:02,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:05,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:05,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:05,596 INFO L93 Difference]: Finished difference Result 2683 states and 3842 transitions. [2022-12-14 07:08:05,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:08:05,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 878 [2022-12-14 07:08:05,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:05,605 INFO L225 Difference]: With dead ends: 2683 [2022-12-14 07:08:05,605 INFO L226 Difference]: Without dead ends: 2681 [2022-12-14 07:08:05,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:05,606 INFO L413 NwaCegarLoop]: 2694 mSDtfsCounter, 2403 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:05,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 5874 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 8 Unknown, 0 Unchecked, 22.4s Time] [2022-12-14 07:08:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-12-14 07:08:05,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2679. [2022-12-14 07:08:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 1645 states have (on average 1.2826747720364742) internal successors, (2110), 1714 states have internal predecessors, (2110), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:08:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3837 transitions. [2022-12-14 07:08:05,837 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3837 transitions. Word has length 878 [2022-12-14 07:08:05,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:05,837 INFO L495 AbstractCegarLoop]: Abstraction has 2679 states and 3837 transitions. [2022-12-14 07:08:05,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-12-14 07:08:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3837 transitions. [2022-12-14 07:08:05,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2022-12-14 07:08:05,852 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:05,852 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:05,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 07:08:05,852 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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 23 more)] === [2022-12-14 07:08:05,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash -376716111, now seen corresponding path program 1 times [2022-12-14 07:08:05,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:05,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888219239] [2022-12-14 07:08:05,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:05,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:08:07,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:07,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888219239] [2022-12-14 07:08:07,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888219239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:07,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:07,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:08:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940907679] [2022-12-14 07:08:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:07,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:08:07,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:08:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:08:07,130 INFO L87 Difference]: Start difference. First operand 2679 states and 3837 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-12-14 07:08:09,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:11,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:13,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:15,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:17,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:20,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:23,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:26,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:26,770 INFO L93 Difference]: Finished difference Result 2681 states and 3840 transitions. [2022-12-14 07:08:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:08:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 888 [2022-12-14 07:08:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:26,779 INFO L225 Difference]: With dead ends: 2681 [2022-12-14 07:08:26,779 INFO L226 Difference]: Without dead ends: 2679 [2022-12-14 07:08:26,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:26,780 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 2399 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:26,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 5870 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 8 Unknown, 0 Unchecked, 19.3s Time] [2022-12-14 07:08:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2022-12-14 07:08:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2677. [2022-12-14 07:08:27,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1644 states have (on average 1.2822384428223845) internal successors, (2108), 1712 states have internal predecessors, (2108), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:08:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3835 transitions. [2022-12-14 07:08:27,015 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3835 transitions. Word has length 888 [2022-12-14 07:08:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:27,015 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3835 transitions. [2022-12-14 07:08:27,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-12-14 07:08:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3835 transitions. [2022-12-14 07:08:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2022-12-14 07:08:27,029 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:27,030 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:27,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 07:08:27,030 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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 23 more)] === [2022-12-14 07:08:27,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:27,030 INFO L85 PathProgramCache]: Analyzing trace with hash -804879270, now seen corresponding path program 1 times [2022-12-14 07:08:27,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:27,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877057706] [2022-12-14 07:08:27,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:27,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:08:28,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:28,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877057706] [2022-12-14 07:08:28,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877057706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:28,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:28,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:08:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325210873] [2022-12-14 07:08:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:28,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:08:28,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:08:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:08:28,397 INFO L87 Difference]: Start difference. First operand 2677 states and 3835 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2022-12-14 07:08:30,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:32,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:34,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:36,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:39,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:40,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:42,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:44,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:45,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:47,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:50,830 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 [] [2022-12-14 07:08:51,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:51,280 INFO L93 Difference]: Finished difference Result 2679 states and 3838 transitions. [2022-12-14 07:08:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:08:51,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 893 [2022-12-14 07:08:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:51,290 INFO L225 Difference]: With dead ends: 2679 [2022-12-14 07:08:51,290 INFO L226 Difference]: Without dead ends: 2677 [2022-12-14 07:08:51,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:51,291 INFO L413 NwaCegarLoop]: 2679 mSDtfsCounter, 2396 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 5844 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:51,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 5844 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 7 Unknown, 0 Unchecked, 22.6s Time] [2022-12-14 07:08:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2022-12-14 07:08:51,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2022-12-14 07:08:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 1643 states have (on average 1.2818015824710896) internal successors, (2106), 1710 states have internal predecessors, (2106), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:08:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3833 transitions. [2022-12-14 07:08:51,539 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3833 transitions. Word has length 893 [2022-12-14 07:08:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:51,540 INFO L495 AbstractCegarLoop]: Abstraction has 2675 states and 3833 transitions. [2022-12-14 07:08:51,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2022-12-14 07:08:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3833 transitions. [2022-12-14 07:08:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2022-12-14 07:08:51,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:51,554 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:51,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 07:08:51,555 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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 23 more)] === [2022-12-14 07:08:51,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:51,555 INFO L85 PathProgramCache]: Analyzing trace with hash 354352639, now seen corresponding path program 1 times [2022-12-14 07:08:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:51,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073194301] [2022-12-14 07:08:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:51,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:08:52,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:52,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073194301] [2022-12-14 07:08:52,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073194301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:52,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:52,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:08:52,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978522084] [2022-12-14 07:08:52,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:52,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:08:52,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:52,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:08:52,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:08:52,853 INFO L87 Difference]: Start difference. First operand 2675 states and 3833 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2022-12-14 07:08:55,624 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 [] [2022-12-14 07:08:57,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:59,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:01,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:03,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:06,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:10,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:12,264 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 [] [2022-12-14 07:09:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:12,764 INFO L93 Difference]: Finished difference Result 2677 states and 3836 transitions. [2022-12-14 07:09:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:09:12,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 903 [2022-12-14 07:09:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:12,772 INFO L225 Difference]: With dead ends: 2677 [2022-12-14 07:09:12,772 INFO L226 Difference]: Without dead ends: 2675 [2022-12-14 07:09:12,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:12,773 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 2392 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 5862 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:12,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 5862 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 8 Unknown, 0 Unchecked, 19.5s Time] [2022-12-14 07:09:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2022-12-14 07:09:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2673. [2022-12-14 07:09:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 1642 states have (on average 1.2813641900121802) internal successors, (2104), 1708 states have internal predecessors, (2104), 864 states have call successors, (864), 167 states have call predecessors, (864), 166 states have return successors, (863), 862 states have call predecessors, (863), 863 states have call successors, (863) [2022-12-14 07:09:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3831 transitions. [2022-12-14 07:09:13,087 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3831 transitions. Word has length 903 [2022-12-14 07:09:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:13,088 INFO L495 AbstractCegarLoop]: Abstraction has 2673 states and 3831 transitions. [2022-12-14 07:09:13,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2022-12-14 07:09:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3831 transitions. [2022-12-14 07:09:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2022-12-14 07:09:13,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:13,102 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 37, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:13,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 07:09:13,103 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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 23 more)] === [2022-12-14 07:09:13,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2090709756, now seen corresponding path program 1 times [2022-12-14 07:09:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:13,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746116664] [2022-12-14 07:09:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:13,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 14054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14054 trivial. 0 not checked. [2022-12-14 07:09:14,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:14,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746116664] [2022-12-14 07:09:14,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746116664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:14,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:14,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:09:14,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173941280] [2022-12-14 07:09:14,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:14,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:09:14,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:14,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:09:14,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:09:14,400 INFO L87 Difference]: Start difference. First operand 2673 states and 3831 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (105), 2 states have call predecessors, (105), 1 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-12-14 07:09:16,876 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 []