./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:05:59,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:05:59,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:05:59,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:05:59,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:05:59,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:05:59,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:05:59,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:05:59,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:05:59,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:05:59,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:05:59,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:05:59,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:05:59,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:05:59,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:05:59,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:05:59,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:05:59,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:05:59,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:05:59,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:05:59,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:05:59,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:05:59,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:05:59,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:05:59,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:05:59,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:05:59,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:05:59,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:05:59,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:05:59,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:05:59,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:05:59,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:05:59,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:05:59,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:05:59,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:05:59,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:05:59,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:05:59,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:05:59,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:05:59,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:05:59,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:05:59,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 01:05:59,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:05:59,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:05:59,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:05:59,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:05:59,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:05:59,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:05:59,683 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:05:59,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:05:59,684 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:05:59,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:05:59,686 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:05:59,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:05:59,687 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:05:59,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:05:59,688 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:05:59,688 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:05:59,688 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:05:59,689 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:05:59,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:05:59,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:05:59,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:05:59,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:05:59,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:05:59,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:05:59,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:05:59,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:05:59,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:05:59,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:05:59,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:05:59,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:05:59,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:05:59,696 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:05:59,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:05:59,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:05:59,697 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:05:59,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:05:59,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:05:59,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:05:59,698 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_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-11-26 01:06:00,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:06:00,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:06:00,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:06:00,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:06:00,139 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:06:00,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-26 01:06:03,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:06:04,886 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:06:04,887 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-26 01:06:04,995 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/data/956e5f9a8/34ca6d04b240450fa6dbc09f0f4c9056/FLAGdf2cdd813 [2022-11-26 01:06:05,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/data/956e5f9a8/34ca6d04b240450fa6dbc09f0f4c9056 [2022-11-26 01:06:05,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:06:05,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:06:05,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:06:05,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:06:05,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:06:05,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:06:05" (1/1) ... [2022-11-26 01:06:05,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79678ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:05, skipping insertion in model container [2022-11-26 01:06:05,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:06:05" (1/1) ... [2022-11-26 01:06:05,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:06:05,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:06:06,491 WARN L623 FunctionHandler]: Unknown extern function __bread_gfp [2022-11-26 01:06:06,507 WARN L623 FunctionHandler]: Unknown extern function __getblk_gfp [2022-11-26 01:06:06,517 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:06,522 WARN L623 FunctionHandler]: Unknown extern function __wait_on_buffer [2022-11-26 01:06:06,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:06,643 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-11-26 01:06:06,655 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:06,658 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-11-26 01:06:06,678 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:06,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:06,686 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:06,700 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:06,789 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 01:06:06,804 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 01:06:06,953 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:06,959 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 01:06:06,974 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 01:06:06,974 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 01:06:06,979 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 01:06:06,982 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:06,983 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 01:06:06,986 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 01:06:06,998 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 01:06:07,001 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,002 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,005 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 01:06:07,008 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,009 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,010 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,011 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,012 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,018 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:06:07,018 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 01:06:07,019 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 01:06:07,022 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,034 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,049 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,050 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,051 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,051 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,053 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:07,166 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,197 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,210 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,220 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,273 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-26 01:06:07,274 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-11-26 01:06:07,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,315 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,325 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,326 WARN L623 FunctionHandler]: Unknown extern function d_obtain_alias [2022-11-26 01:06:07,352 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,355 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,461 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:07,470 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:07,548 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-11-26 01:06:07,571 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,575 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,586 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,588 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,591 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,593 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,613 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,614 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,634 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,636 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,640 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,651 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,663 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,666 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_408 [2022-11-26 01:06:07,666 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:07,667 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-26 01:06:07,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,704 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,707 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_491 [2022-11-26 01:06:07,707 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:07,733 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,758 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,761 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:07,790 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-11-26 01:06:07,797 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-11-26 01:06:07,866 WARN L623 FunctionHandler]: Unknown extern function iget_locked [2022-11-26 01:06:07,869 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,876 WARN L623 FunctionHandler]: Unknown extern function iget_failed [2022-11-26 01:06:07,878 WARN L623 FunctionHandler]: Unknown extern function unlock_new_inode [2022-11-26 01:06:07,889 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,899 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,907 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,909 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,913 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,914 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,919 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,936 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,941 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,942 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,945 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,947 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,947 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:07,949 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,951 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,963 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:07,965 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:07,967 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,967 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:07,969 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:07,970 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:07,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:07,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,012 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,016 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-26 01:06:08,019 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,029 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,031 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,034 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:06:08,038 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,039 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,039 WARN L623 FunctionHandler]: Unknown extern function d_splice_alias [2022-11-26 01:06:08,040 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,047 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,455 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-11-26 01:06:08,520 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,521 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,521 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,532 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,533 WARN L623 FunctionHandler]: Unknown extern function sb_min_blocksize [2022-11-26 01:06:08,534 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:06:08,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,536 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-11-26 01:06:08,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,540 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-11-26 01:06:08,541 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,542 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,544 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,546 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,547 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,548 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,550 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,551 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,552 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,553 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,555 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,556 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,561 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,566 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-11-26 01:06:08,566 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-11-26 01:06:08,567 WARN L623 FunctionHandler]: Unknown extern function iput [2022-11-26 01:06:08,567 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-11-26 01:06:08,567 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,569 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,569 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,570 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,570 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,570 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,571 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,571 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,571 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,581 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:08,589 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-11-26 01:06:08,597 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,598 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,598 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,598 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,599 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,599 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:08,606 WARN L623 FunctionHandler]: Unknown extern function mount_bdev [2022-11-26 01:06:08,613 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-11-26 01:06:08,618 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-11-26 01:06:08,625 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 01:06:08,633 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:08,655 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 01:06:09,052 WARN L623 FunctionHandler]: Unknown extern function kill_block_super [2022-11-26 01:06:09,079 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-11-26 01:06:09,080 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-11-26 01:06:09,088 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:09,096 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:09,158 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:09,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,161 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_100 [2022-11-26 01:06:09,162 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:09,162 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:09,164 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-11-26 01:06:09,164 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-11-26 01:06:09,165 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-11-26 01:06:09,165 WARN L623 FunctionHandler]: Unknown extern function generic_getxattr [2022-11-26 01:06:09,198 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,199 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,200 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,229 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:06:09,230 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,231 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,232 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,266 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:06:09,269 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,292 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:06:09,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,324 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:09,365 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,373 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,374 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,383 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,383 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,383 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,394 WARN L623 FunctionHandler]: Unknown extern function lz4_decompress_unknownoutputsize [2022-11-26 01:06:09,430 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,430 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,430 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,438 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,438 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,438 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,447 WARN L623 FunctionHandler]: Unknown extern function lzo1x_decompress_safe [2022-11-26 01:06:09,499 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,512 WARN L623 FunctionHandler]: Unknown extern function xz_dec_init [2022-11-26 01:06:09,514 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,515 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,522 WARN L623 FunctionHandler]: Unknown extern function xz_dec_end [2022-11-26 01:06:09,523 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,531 WARN L623 FunctionHandler]: Unknown extern function xz_dec_reset [2022-11-26 01:06:09,534 WARN L623 FunctionHandler]: Unknown extern function xz_dec_run [2022-11-26 01:06:09,584 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate_workspacesize [2022-11-26 01:06:09,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:09,585 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,592 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:09,593 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:09,602 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateInit2 [2022-11-26 01:06:09,603 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate [2022-11-26 01:06:09,604 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateEnd [2022-11-26 01:06:10,348 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:10,718 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 01:06:11,567 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-26 01:06:11,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-26 01:06:11,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-26 01:06:11,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-26 01:06:11,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-26 01:06:11,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-26 01:06:11,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-26 01:06:11,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-26 01:06:11,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-26 01:06:11,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-26 01:06:11,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-26 01:06:11,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-26 01:06:11,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-26 01:06:11,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-26 01:06:11,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-26 01:06:11,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-26 01:06:11,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-26 01:06:11,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-26 01:06:11,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-26 01:06:11,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-26 01:06:11,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-26 01:06:11,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-26 01:06:11,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-26 01:06:11,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-26 01:06:11,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-26 01:06:11,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-26 01:06:11,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-26 01:06:11,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-26 01:06:11,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-26 01:06:11,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-26 01:06:11,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-26 01:06:11,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-26 01:06:11,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-26 01:06:11,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-26 01:06:11,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-26 01:06:11,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-26 01:06:11,609 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-26 01:06:11,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-26 01:06:11,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-26 01:06:11,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-26 01:06:11,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-26 01:06:11,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-26 01:06:11,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-26 01:06:11,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-26 01:06:11,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-26 01:06:11,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-26 01:06:11,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-26 01:06:11,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-26 01:06:11,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-26 01:06:11,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-26 01:06:11,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-26 01:06:11,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-26 01:06:11,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-26 01:06:11,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-26 01:06:11,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-26 01:06:11,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-26 01:06:11,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-26 01:06:11,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-26 01:06:11,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-26 01:06:11,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-26 01:06:11,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-26 01:06:11,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-26 01:06:11,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-26 01:06:11,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-26 01:06:11,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-26 01:06:11,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-26 01:06:11,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-26 01:06:11,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-26 01:06:11,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-26 01:06:11,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-26 01:06:11,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-26 01:06:11,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-26 01:06:11,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-26 01:06:11,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-26 01:06:11,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-26 01:06:11,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-26 01:06:11,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-26 01:06:11,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-26 01:06:11,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-26 01:06:11,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-26 01:06:11,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-26 01:06:11,655 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-26 01:06:11,656 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-26 01:06:11,656 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-26 01:06:11,657 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-26 01:06:11,657 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-26 01:06:11,659 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-26 01:06:11,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-26 01:06:11,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:06:11,739 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:06:11,862 WARN L623 FunctionHandler]: Unknown extern function __bread_gfp [2022-11-26 01:06:11,863 WARN L623 FunctionHandler]: Unknown extern function __getblk_gfp [2022-11-26 01:06:11,864 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:11,865 WARN L623 FunctionHandler]: Unknown extern function __wait_on_buffer [2022-11-26 01:06:11,874 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,877 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-11-26 01:06:11,880 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,882 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-11-26 01:06:11,885 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,886 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,887 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,889 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:11,891 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 01:06:11,892 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 01:06:11,896 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:11,897 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 01:06:11,898 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 01:06:11,899 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 01:06:11,903 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 01:06:11,904 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 01:06:11,905 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 01:06:11,906 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 01:06:11,906 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 01:06:11,907 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,908 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,910 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 01:06:11,911 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,912 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,913 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,913 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,914 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,917 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:06:11,917 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 01:06:11,919 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 01:06:11,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,926 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,931 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,932 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,932 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,932 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,933 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:11,938 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,944 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,963 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:11,964 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,969 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-11-26 01:06:11,970 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-11-26 01:06:11,973 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,974 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,981 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,981 WARN L623 FunctionHandler]: Unknown extern function d_obtain_alias [2022-11-26 01:06:11,988 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:11,990 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:11,992 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:11,993 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:11,997 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-11-26 01:06:11,999 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,001 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,007 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,008 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,010 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,011 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,014 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,017 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,017 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,021 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,029 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,035 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,038 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,045 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,046 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_408 [2022-11-26 01:06:12,047 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:12,047 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-26 01:06:12,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,133 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,134 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_491 [2022-11-26 01:06:12,135 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:12,138 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,141 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,142 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,144 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-11-26 01:06:12,144 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-11-26 01:06:12,146 WARN L623 FunctionHandler]: Unknown extern function iget_locked [2022-11-26 01:06:12,147 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,148 WARN L623 FunctionHandler]: Unknown extern function iget_failed [2022-11-26 01:06:12,148 WARN L623 FunctionHandler]: Unknown extern function unlock_new_inode [2022-11-26 01:06:12,153 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,155 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,159 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,160 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,165 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,166 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,171 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,172 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,177 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,178 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,181 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,182 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,183 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:12,184 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,186 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,187 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:12,188 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,189 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,189 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:12,192 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-11-26 01:06:12,192 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-11-26 01:06:12,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,198 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,199 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-26 01:06:12,200 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,203 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,203 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,209 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:06:12,211 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,213 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,213 WARN L623 FunctionHandler]: Unknown extern function d_splice_alias [2022-11-26 01:06:12,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,214 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,217 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-11-26 01:06:12,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,222 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,222 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,223 WARN L623 FunctionHandler]: Unknown extern function sb_min_blocksize [2022-11-26 01:06:12,223 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:06:12,224 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,225 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-11-26 01:06:12,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,229 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,230 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-11-26 01:06:12,231 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,232 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,233 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,234 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,235 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,236 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,237 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,238 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,239 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,239 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,240 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,241 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,244 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,246 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,247 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,251 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,252 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-11-26 01:06:12,253 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-11-26 01:06:12,253 WARN L623 FunctionHandler]: Unknown extern function iput [2022-11-26 01:06:12,253 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-11-26 01:06:12,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,254 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,254 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,256 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,256 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,256 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,259 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,260 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-11-26 01:06:12,261 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,262 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,262 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,262 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,262 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,263 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,263 WARN L623 FunctionHandler]: Unknown extern function mount_bdev [2022-11-26 01:06:12,264 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-11-26 01:06:12,264 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-11-26 01:06:12,264 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 01:06:12,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,266 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 01:06:12,275 WARN L623 FunctionHandler]: Unknown extern function kill_block_super [2022-11-26 01:06:12,292 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-11-26 01:06:12,293 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-11-26 01:06:12,294 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:12,295 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:06:12,300 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,303 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_100 [2022-11-26 01:06:12,303 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:12,303 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-26 01:06:12,305 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-11-26 01:06:12,305 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-11-26 01:06:12,306 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-11-26 01:06:12,306 WARN L623 FunctionHandler]: Unknown extern function generic_getxattr [2022-11-26 01:06:12,311 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,312 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,313 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,318 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,318 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:06:12,318 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,320 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,333 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:06:12,335 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,339 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:06:12,347 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,348 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 01:06:12,350 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,351 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,352 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,353 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,353 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,353 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,355 WARN L623 FunctionHandler]: Unknown extern function lz4_decompress_unknownoutputsize [2022-11-26 01:06:12,359 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,360 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,360 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,361 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,361 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,362 WARN L623 FunctionHandler]: Unknown extern function lzo1x_decompress_safe [2022-11-26 01:06:12,367 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,368 WARN L623 FunctionHandler]: Unknown extern function xz_dec_init [2022-11-26 01:06:12,369 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,369 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,370 WARN L623 FunctionHandler]: Unknown extern function xz_dec_end [2022-11-26 01:06:12,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,370 WARN L623 FunctionHandler]: Unknown extern function xz_dec_reset [2022-11-26 01:06:12,372 WARN L623 FunctionHandler]: Unknown extern function xz_dec_run [2022-11-26 01:06:12,375 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate_workspacesize [2022-11-26 01:06:12,376 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:06:12,376 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,377 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 01:06:12,377 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:06:12,379 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateInit2 [2022-11-26 01:06:12,379 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate [2022-11-26 01:06:12,380 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateEnd [2022-11-26 01:06:12,398 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:06:12,407 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 01:06:12,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-26 01:06:12,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-26 01:06:12,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-26 01:06:12,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-26 01:06:12,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-26 01:06:12,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-26 01:06:12,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-26 01:06:12,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-26 01:06:12,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-26 01:06:12,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-26 01:06:12,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-26 01:06:12,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-26 01:06:12,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-26 01:06:12,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-26 01:06:12,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-26 01:06:12,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-26 01:06:12,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-26 01:06:12,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-26 01:06:12,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-26 01:06:12,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-26 01:06:12,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-26 01:06:12,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-26 01:06:12,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-26 01:06:12,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-26 01:06:12,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-26 01:06:12,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-26 01:06:12,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-26 01:06:12,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-26 01:06:12,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-26 01:06:12,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-26 01:06:12,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-26 01:06:12,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-26 01:06:12,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-26 01:06:12,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-26 01:06:12,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-26 01:06:12,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-26 01:06:12,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-26 01:06:12,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-26 01:06:12,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-26 01:06:12,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-26 01:06:12,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-26 01:06:12,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-26 01:06:12,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-26 01:06:12,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-26 01:06:12,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-26 01:06:12,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-26 01:06:12,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-26 01:06:12,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-26 01:06:12,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-26 01:06:12,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-26 01:06:12,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-26 01:06:12,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-26 01:06:12,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-26 01:06:12,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-26 01:06:12,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-26 01:06:12,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-26 01:06:12,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-26 01:06:12,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-26 01:06:12,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-26 01:06:12,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-26 01:06:12,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-26 01:06:12,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-26 01:06:12,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-26 01:06:12,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-26 01:06:12,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-26 01:06:12,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-26 01:06:12,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-26 01:06:12,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-26 01:06:12,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-26 01:06:12,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-26 01:06:12,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-26 01:06:12,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-26 01:06:12,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-26 01:06:12,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-26 01:06:12,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-26 01:06:12,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-26 01:06:12,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-26 01:06:12,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-26 01:06:12,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-26 01:06:12,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-26 01:06:12,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-26 01:06:12,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-26 01:06:12,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-26 01:06:12,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-26 01:06:12,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-26 01:06:12,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-26 01:06:12,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-26 01:06:12,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-26 01:06:12,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:06:12,907 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:06:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12 WrapperNode [2022-11-26 01:06:12,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:06:12,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:06:12,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:06:12,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:06:12,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,370 INFO L138 Inliner]: procedures = 716, calls = 4122, calls flagged for inlining = 351, calls inlined = 253, statements flattened = 8119 [2022-11-26 01:06:13,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:06:13,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:06:13,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:06:13,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:06:13,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:06:13,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:06:13,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:06:13,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:06:13,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (1/1) ... [2022-11-26 01:06:13,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:06:13,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:06:13,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:06:13,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:06:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2022-11-26 01:06:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2022-11-26 01:06:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2022-11-26 01:06:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2022-11-26 01:06:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2022-11-26 01:06:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2022-11-26 01:06:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2022-11-26 01:06:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2022-11-26 01:06:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-26 01:06:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-26 01:06:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-26 01:06:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-26 01:06:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-26 01:06:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 01:06:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 01:06:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-26 01:06:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-26 01:06:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2022-11-26 01:06:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2022-11-26 01:06:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 01:06:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 01:06:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-26 01:06:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-26 01:06:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-26 01:06:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-26 01:06:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 01:06:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 01:06:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2022-11-26 01:06:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2022-11-26 01:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-26 01:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-26 01:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-26 01:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-26 01:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2022-11-26 01:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2022-11-26 01:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_lookup [2022-11-26 01:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_lookup [2022-11-26 01:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-26 01:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-26 01:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 01:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 01:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2022-11-26 01:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2022-11-26 01:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 01:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 01:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-26 01:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-26 01:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-26 01:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-26 01:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2022-11-26 01:06:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2022-11-26 01:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2022-11-26 01:06:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2022-11-26 01:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2022-11-26 01:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2022-11-26 01:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2022-11-26 01:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2022-11-26 01:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-26 01:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-26 01:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2022-11-26 01:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2022-11-26 01:06:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-26 01:06:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-26 01:06:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-26 01:06:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-26 01:06:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2022-11-26 01:06:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2022-11-26 01:06:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 01:06:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2022-11-26 01:06:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2022-11-26 01:06:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2022-11-26 01:06:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2022-11-26 01:06:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:06:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-26 01:06:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-26 01:06:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 01:06:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 01:06:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-26 01:06:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-26 01:06:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:06:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-26 01:06:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-26 01:06:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2022-11-26 01:06:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2022-11-26 01:06:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-26 01:06:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-26 01:06:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-11-26 01:06:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-11-26 01:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 01:06:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 01:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-26 01:06:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-26 01:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-26 01:06:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-26 01:06:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-26 01:06:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-26 01:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2022-11-26 01:06:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2022-11-26 01:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-26 01:06:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-26 01:06:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-26 01:06:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-26 01:06:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2022-11-26 01:06:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2022-11-26 01:06:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-26 01:06:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-26 01:06:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2022-11-26 01:06:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2022-11-26 01:06:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:06:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-26 01:06:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-26 01:06:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2022-11-26 01:06:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-26 01:06:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2022-11-26 01:06:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 01:06:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 01:06:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 01:06:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-26 01:06:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:06:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2022-11-26 01:06:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 01:06:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 01:06:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 01:06:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2022-11-26 01:06:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-26 01:06:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-26 01:06:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-26 01:06:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-26 01:06:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-26 01:06:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2022-11-26 01:06:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 01:06:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-26 01:06:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-26 01:06:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:06:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2022-11-26 01:06:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2022-11-26 01:06:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2022-11-26 01:06:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2022-11-26 01:06:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-26 01:06:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-26 01:06:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-26 01:06:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-26 01:06:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 01:06:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 01:06:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2022-11-26 01:06:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2022-11-26 01:06:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-26 01:06:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-26 01:06:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-26 01:06:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-26 01:06:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-26 01:06:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-26 01:06:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-26 01:06:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2022-11-26 01:06:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2022-11-26 01:06:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 01:06:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-26 01:06:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2022-11-26 01:06:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 01:06:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-26 01:06:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2022-11-26 01:06:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2022-11-26 01:06:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-26 01:06:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2022-11-26 01:06:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2022-11-26 01:06:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 01:06:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-26 01:06:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-26 01:06:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2022-11-26 01:06:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-11-26 01:06:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-26 01:06:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-26 01:06:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2022-11-26 01:06:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-26 01:06:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-26 01:06:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-26 01:06:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-26 01:06:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2022-11-26 01:06:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2022-11-26 01:06:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 01:06:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 01:06:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-26 01:06:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-26 01:06:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2022-11-26 01:06:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2022-11-26 01:06:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2022-11-26 01:06:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2022-11-26 01:06:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2022-11-26 01:06:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2022-11-26 01:06:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-26 01:06:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-26 01:06:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:06:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-26 01:06:15,599 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:06:15,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:06:16,842 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 01:06:25,956 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:06:27,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:06:27,990 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 01:06:27,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:06:27 BoogieIcfgContainer [2022-11-26 01:06:27,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:06:28,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:06:28,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:06:28,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:06:28,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:06:05" (1/3) ... [2022-11-26 01:06:28,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@916e59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:06:28, skipping insertion in model container [2022-11-26 01:06:28,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:06:12" (2/3) ... [2022-11-26 01:06:28,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@916e59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:06:28, skipping insertion in model container [2022-11-26 01:06:28,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:06:27" (3/3) ... [2022-11-26 01:06:28,008 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-26 01:06:28,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:06:28,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-26 01:06:28,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:06:28,147 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;@521822f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:06:28,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-26 01:06:28,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 2000 states, 1193 states have (on average 1.3378038558256495) internal successors, (1596), 1286 states have internal predecessors, (1596), 644 states have call successors, (644), 130 states have call predecessors, (644), 129 states have return successors, (634), 617 states have call predecessors, (634), 634 states have call successors, (634) [2022-11-26 01:06:28,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-26 01:06:28,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:28,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:28,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:28,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:28,180 INFO L85 PathProgramCache]: Analyzing trace with hash -586056182, now seen corresponding path program 1 times [2022-11-26 01:06:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:28,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019359980] [2022-11-26 01:06:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:28,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 01:06:29,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:29,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019359980] [2022-11-26 01:06:29,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019359980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:29,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:29,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294293567] [2022-11-26 01:06:29,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:29,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:29,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:29,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:29,842 INFO L87 Difference]: Start difference. First operand has 2000 states, 1193 states have (on average 1.3378038558256495) internal successors, (1596), 1286 states have internal predecessors, (1596), 644 states have call successors, (644), 130 states have call predecessors, (644), 129 states have return successors, (634), 617 states have call predecessors, (634), 634 states have call successors, (634) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:34,755 INFO L93 Difference]: Finished difference Result 3977 states and 5896 transitions. [2022-11-26 01:06:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:06:34,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-11-26 01:06:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:34,793 INFO L225 Difference]: With dead ends: 3977 [2022-11-26 01:06:34,794 INFO L226 Difference]: Without dead ends: 1980 [2022-11-26 01:06:34,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:34,819 INFO L413 NwaCegarLoop]: 2513 mSDtfsCounter, 2834 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:34,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 5017 Invalid, 644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 01:06:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2022-11-26 01:06:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1980. [2022-11-26 01:06:35,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1269 states have internal predecessors, (1545), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:06:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2811 transitions. [2022-11-26 01:06:35,116 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2811 transitions. Word has length 35 [2022-11-26 01:06:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:35,118 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2811 transitions. [2022-11-26 01:06:35,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2811 transitions. [2022-11-26 01:06:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-26 01:06:35,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:35,122 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:35,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:06:35,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:35,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash -554998009, now seen corresponding path program 1 times [2022-11-26 01:06:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:35,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957453755] [2022-11-26 01:06:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:35,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 01:06:35,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:35,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957453755] [2022-11-26 01:06:35,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957453755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:35,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:35,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:35,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099519574] [2022-11-26 01:06:35,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:35,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:35,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:35,861 INFO L87 Difference]: Start difference. First operand 1980 states and 2811 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:39,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:39,898 INFO L93 Difference]: Finished difference Result 1980 states and 2811 transitions. [2022-11-26 01:06:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:06:39,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-11-26 01:06:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:39,915 INFO L225 Difference]: With dead ends: 1980 [2022-11-26 01:06:39,915 INFO L226 Difference]: Without dead ends: 1978 [2022-11-26 01:06:39,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:39,919 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2799 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 4966 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:39,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 4966 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 01:06:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-11-26 01:06:40,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2022-11-26 01:06:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1185 states have (on average 1.3021097046413501) internal successors, (1543), 1267 states have internal predecessors, (1543), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:06:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2809 transitions. [2022-11-26 01:06:40,080 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2809 transitions. Word has length 37 [2022-11-26 01:06:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:40,080 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2809 transitions. [2022-11-26 01:06:40,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2809 transitions. [2022-11-26 01:06:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-26 01:06:40,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:40,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:40,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:06:40,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash -772582871, now seen corresponding path program 1 times [2022-11-26 01:06:40,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:40,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761219018] [2022-11-26 01:06:40,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 01:06:40,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:40,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761219018] [2022-11-26 01:06:40,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761219018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:40,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:40,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:40,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416964805] [2022-11-26 01:06:40,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:40,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:40,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:40,718 INFO L87 Difference]: Start difference. First operand 1978 states and 2809 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:45,061 INFO L93 Difference]: Finished difference Result 1978 states and 2809 transitions. [2022-11-26 01:06:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:06:45,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-26 01:06:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:45,079 INFO L225 Difference]: With dead ends: 1978 [2022-11-26 01:06:45,079 INFO L226 Difference]: Without dead ends: 1976 [2022-11-26 01:06:45,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:45,082 INFO L413 NwaCegarLoop]: 2484 mSDtfsCounter, 2791 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 4965 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:45,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 4965 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-26 01:06:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2022-11-26 01:06:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2022-11-26 01:06:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1184 states have (on average 1.3015202702702702) internal successors, (1541), 1265 states have internal predecessors, (1541), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:06:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2807 transitions. [2022-11-26 01:06:45,311 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2807 transitions. Word has length 39 [2022-11-26 01:06:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:45,312 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2807 transitions. [2022-11-26 01:06:45,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2807 transitions. [2022-11-26 01:06:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-26 01:06:45,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:45,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:45,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:06:45,315 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash 581500282, now seen corresponding path program 1 times [2022-11-26 01:06:45,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237335725] [2022-11-26 01:06:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:45,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 01:06:46,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:46,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237335725] [2022-11-26 01:06:46,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237335725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:46,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:46,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827853910] [2022-11-26 01:06:46,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:46,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:46,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:46,101 INFO L87 Difference]: Start difference. First operand 1976 states and 2807 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:48,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:50,855 INFO L93 Difference]: Finished difference Result 1976 states and 2807 transitions. [2022-11-26 01:06:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:06:50,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-11-26 01:06:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:50,870 INFO L225 Difference]: With dead ends: 1976 [2022-11-26 01:06:50,870 INFO L226 Difference]: Without dead ends: 1974 [2022-11-26 01:06:50,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:50,873 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2783 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:50,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 4964 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 01:06:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2022-11-26 01:06:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2022-11-26 01:06:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1183 states have (on average 1.300929839391378) internal successors, (1539), 1263 states have internal predecessors, (1539), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:06:51,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2805 transitions. [2022-11-26 01:06:51,095 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2805 transitions. Word has length 41 [2022-11-26 01:06:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:51,096 INFO L495 AbstractCegarLoop]: Abstraction has 1974 states and 2805 transitions. [2022-11-26 01:06:51,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 01:06:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2805 transitions. [2022-11-26 01:06:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-26 01:06:51,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:51,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:51,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:06:51,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:51,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -850184214, now seen corresponding path program 1 times [2022-11-26 01:06:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:51,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111635008] [2022-11-26 01:06:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:06:51,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111635008] [2022-11-26 01:06:51,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111635008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:51,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:51,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:51,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479777763] [2022-11-26 01:06:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:51,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:51,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:51,740 INFO L87 Difference]: Start difference. First operand 1974 states and 2805 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2022-11-26 01:06:55,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:55,587 INFO L93 Difference]: Finished difference Result 1974 states and 2805 transitions. [2022-11-26 01:06:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:06:55,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 48 [2022-11-26 01:06:55,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:55,603 INFO L225 Difference]: With dead ends: 1974 [2022-11-26 01:06:55,604 INFO L226 Difference]: Without dead ends: 1972 [2022-11-26 01:06:55,606 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 [2022-11-26 01:06:55,607 INFO L413 NwaCegarLoop]: 2480 mSDtfsCounter, 2785 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 4960 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:55,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 4960 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-26 01:06:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-11-26 01:06:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2022-11-26 01:06:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1182 states have (on average 1.3003384094754653) internal successors, (1537), 1261 states have internal predecessors, (1537), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:06:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2803 transitions. [2022-11-26 01:06:55,785 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2803 transitions. Word has length 48 [2022-11-26 01:06:55,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:55,786 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2803 transitions. [2022-11-26 01:06:55,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2022-11-26 01:06:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2803 transitions. [2022-11-26 01:06:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-26 01:06:55,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:55,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:55,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 01:06:55,789 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:06:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1264932390, now seen corresponding path program 1 times [2022-11-26 01:06:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:55,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154380620] [2022-11-26 01:06:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:06:56,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:56,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154380620] [2022-11-26 01:06:56,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154380620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:56,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:56,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:06:56,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568358690] [2022-11-26 01:06:56,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:56,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:06:56,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:56,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:06:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:06:56,362 INFO L87 Difference]: Start difference. First operand 1972 states and 2803 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 01:06:58,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:01,156 INFO L93 Difference]: Finished difference Result 1972 states and 2803 transitions. [2022-11-26 01:07:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:01,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 53 [2022-11-26 01:07:01,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:01,170 INFO L225 Difference]: With dead ends: 1972 [2022-11-26 01:07:01,171 INFO L226 Difference]: Without dead ends: 1970 [2022-11-26 01:07:01,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:01,174 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 2782 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:01,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 4956 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 01:07:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-11-26 01:07:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1970. [2022-11-26 01:07:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1970 states, 1181 states have (on average 1.2997459779847587) internal successors, (1535), 1259 states have internal predecessors, (1535), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:07:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2801 transitions. [2022-11-26 01:07:01,363 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2801 transitions. Word has length 53 [2022-11-26 01:07:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:01,364 INFO L495 AbstractCegarLoop]: Abstraction has 1970 states and 2801 transitions. [2022-11-26 01:07:01,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 01:07:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2801 transitions. [2022-11-26 01:07:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-26 01:07:01,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:01,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:01,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 01:07:01,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:01,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2073548507, now seen corresponding path program 1 times [2022-11-26 01:07:01,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:01,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240570559] [2022-11-26 01:07:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:01,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:01,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:01,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240570559] [2022-11-26 01:07:01,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240570559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:01,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:01,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:01,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617830341] [2022-11-26 01:07:01,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:01,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:01,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:01,913 INFO L87 Difference]: Start difference. First operand 1970 states and 2801 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 01:07:03,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:06,480 INFO L93 Difference]: Finished difference Result 1970 states and 2801 transitions. [2022-11-26 01:07:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:06,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 58 [2022-11-26 01:07:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:06,495 INFO L225 Difference]: With dead ends: 1970 [2022-11-26 01:07:06,496 INFO L226 Difference]: Without dead ends: 1968 [2022-11-26 01:07:06,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:06,499 INFO L413 NwaCegarLoop]: 2476 mSDtfsCounter, 2779 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:06,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 4952 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 01:07:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2022-11-26 01:07:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1968. [2022-11-26 01:07:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1180 states have (on average 1.2991525423728814) internal successors, (1533), 1257 states have internal predecessors, (1533), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:07:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2799 transitions. [2022-11-26 01:07:06,704 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2799 transitions. Word has length 58 [2022-11-26 01:07:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:06,705 INFO L495 AbstractCegarLoop]: Abstraction has 1968 states and 2799 transitions. [2022-11-26 01:07:06,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 01:07:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2799 transitions. [2022-11-26 01:07:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-26 01:07:06,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:06,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:06,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 01:07:06,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1119661420, now seen corresponding path program 1 times [2022-11-26 01:07:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:06,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310975033] [2022-11-26 01:07:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:06,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:07,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:07,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310975033] [2022-11-26 01:07:07,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310975033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:07,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:07,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884126105] [2022-11-26 01:07:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:07,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:07,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:07,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:07,223 INFO L87 Difference]: Start difference. First operand 1968 states and 2799 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 01:07:09,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:11,912 INFO L93 Difference]: Finished difference Result 1968 states and 2799 transitions. [2022-11-26 01:07:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:11,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 63 [2022-11-26 01:07:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:11,924 INFO L225 Difference]: With dead ends: 1968 [2022-11-26 01:07:11,924 INFO L226 Difference]: Without dead ends: 1966 [2022-11-26 01:07:11,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:11,927 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 2776 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:11,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2778 Valid, 4948 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 01:07:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-11-26 01:07:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1966. [2022-11-26 01:07:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1179 states have (on average 1.2985581000848176) internal successors, (1531), 1255 states have internal predecessors, (1531), 634 states have call successors, (634), 129 states have call predecessors, (634), 128 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-26 01:07:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2797 transitions. [2022-11-26 01:07:12,121 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2797 transitions. Word has length 63 [2022-11-26 01:07:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:12,122 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2797 transitions. [2022-11-26 01:07:12,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 01:07:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2797 transitions. [2022-11-26 01:07:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-26 01:07:12,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:12,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:12,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 01:07:12,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:12,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1322968432, now seen corresponding path program 1 times [2022-11-26 01:07:12,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:12,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959056978] [2022-11-26 01:07:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 01:07:13,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:13,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959056978] [2022-11-26 01:07:13,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959056978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:13,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:13,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637698802] [2022-11-26 01:07:13,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:13,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:07:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:07:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:13,690 INFO L87 Difference]: Start difference. First operand 1966 states and 2797 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 01:07:15,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:21,785 INFO L93 Difference]: Finished difference Result 4317 states and 6240 transitions. [2022-11-26 01:07:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:07:21,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 64 [2022-11-26 01:07:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:21,804 INFO L225 Difference]: With dead ends: 4317 [2022-11-26 01:07:21,804 INFO L226 Difference]: Without dead ends: 2357 [2022-11-26 01:07:21,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:21,816 INFO L413 NwaCegarLoop]: 2658 mSDtfsCounter, 267 mSDsluCounter, 7584 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 10242 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:21,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 10242 Invalid, 1497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-26 01:07:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2022-11-26 01:07:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1970. [2022-11-26 01:07:22,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1970 states, 1182 states have (on average 1.2978003384094754) internal successors, (1534), 1258 states have internal predecessors, (1534), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2817 transitions. [2022-11-26 01:07:22,083 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2817 transitions. Word has length 64 [2022-11-26 01:07:22,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:22,084 INFO L495 AbstractCegarLoop]: Abstraction has 1970 states and 2817 transitions. [2022-11-26 01:07:22,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 01:07:22,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2817 transitions. [2022-11-26 01:07:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-26 01:07:22,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:22,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:22,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 01:07:22,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:22,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash 476509507, now seen corresponding path program 1 times [2022-11-26 01:07:22,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:22,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650722940] [2022-11-26 01:07:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:22,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:22,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:22,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650722940] [2022-11-26 01:07:22,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650722940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:22,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:22,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:22,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757588935] [2022-11-26 01:07:22,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:22,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:22,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:22,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:22,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:22,626 INFO L87 Difference]: Start difference. First operand 1970 states and 2817 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-26 01:07:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:27,408 INFO L93 Difference]: Finished difference Result 1970 states and 2817 transitions. [2022-11-26 01:07:27,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:27,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 68 [2022-11-26 01:07:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:27,421 INFO L225 Difference]: With dead ends: 1970 [2022-11-26 01:07:27,422 INFO L226 Difference]: Without dead ends: 1968 [2022-11-26 01:07:27,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:27,425 INFO L413 NwaCegarLoop]: 2472 mSDtfsCounter, 2773 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 4944 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:27,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 4944 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 01:07:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2022-11-26 01:07:27,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1968. [2022-11-26 01:07:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1181 states have (on average 1.2972057578323455) internal successors, (1532), 1256 states have internal predecessors, (1532), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2815 transitions. [2022-11-26 01:07:27,683 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2815 transitions. Word has length 68 [2022-11-26 01:07:27,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:27,684 INFO L495 AbstractCegarLoop]: Abstraction has 1968 states and 2815 transitions. [2022-11-26 01:07:27,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-26 01:07:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2815 transitions. [2022-11-26 01:07:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-26 01:07:27,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:27,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:27,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 01:07:27,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:27,688 INFO L85 PathProgramCache]: Analyzing trace with hash -715623459, now seen corresponding path program 1 times [2022-11-26 01:07:27,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:27,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219110479] [2022-11-26 01:07:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:27,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:28,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219110479] [2022-11-26 01:07:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219110479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:28,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732812802] [2022-11-26 01:07:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:28,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:28,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:28,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:28,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:28,213 INFO L87 Difference]: Start difference. First operand 1968 states and 2815 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 01:07:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:33,071 INFO L93 Difference]: Finished difference Result 1968 states and 2815 transitions. [2022-11-26 01:07:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 73 [2022-11-26 01:07:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:33,087 INFO L225 Difference]: With dead ends: 1968 [2022-11-26 01:07:33,087 INFO L226 Difference]: Without dead ends: 1966 [2022-11-26 01:07:33,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:33,090 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 2770 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 4940 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:33,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2772 Valid, 4940 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 01:07:33,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-11-26 01:07:33,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1966. [2022-11-26 01:07:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1180 states have (on average 1.2966101694915255) internal successors, (1530), 1254 states have internal predecessors, (1530), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2813 transitions. [2022-11-26 01:07:33,381 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2813 transitions. Word has length 73 [2022-11-26 01:07:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:33,382 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2813 transitions. [2022-11-26 01:07:33,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 01:07:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2813 transitions. [2022-11-26 01:07:33,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-26 01:07:33,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:33,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:33,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 01:07:33,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:33,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:33,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1774604348, now seen corresponding path program 1 times [2022-11-26 01:07:33,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:33,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411598647] [2022-11-26 01:07:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:33,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:33,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:33,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411598647] [2022-11-26 01:07:33,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411598647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:33,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:33,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:33,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180656125] [2022-11-26 01:07:33,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:33,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:33,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:33,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:33,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:33,905 INFO L87 Difference]: Start difference. First operand 1966 states and 2813 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 01:07:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:37,811 INFO L93 Difference]: Finished difference Result 1966 states and 2813 transitions. [2022-11-26 01:07:37,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 78 [2022-11-26 01:07:37,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:37,824 INFO L225 Difference]: With dead ends: 1966 [2022-11-26 01:07:37,825 INFO L226 Difference]: Without dead ends: 1964 [2022-11-26 01:07:37,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:37,833 INFO L413 NwaCegarLoop]: 2468 mSDtfsCounter, 2767 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 4936 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-26 01:07:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2022-11-26 01:07:38,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1964. [2022-11-26 01:07:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1179 states have (on average 1.2960135708227312) internal successors, (1528), 1252 states have internal predecessors, (1528), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2811 transitions. [2022-11-26 01:07:38,127 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2811 transitions. Word has length 78 [2022-11-26 01:07:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:38,127 INFO L495 AbstractCegarLoop]: Abstraction has 1964 states and 2811 transitions. [2022-11-26 01:07:38,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 01:07:38,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2811 transitions. [2022-11-26 01:07:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-26 01:07:38,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:38,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:38,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 01:07:38,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash -44183220, now seen corresponding path program 1 times [2022-11-26 01:07:38,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:38,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994974723] [2022-11-26 01:07:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:38,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-26 01:07:39,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:39,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994974723] [2022-11-26 01:07:39,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994974723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:39,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:39,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 01:07:39,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622557513] [2022-11-26 01:07:39,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:39,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:07:39,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:39,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:07:39,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:39,541 INFO L87 Difference]: Start difference. First operand 1964 states and 2811 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 01:07:49,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:49,953 INFO L93 Difference]: Finished difference Result 1964 states and 2811 transitions. [2022-11-26 01:07:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:49,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-26 01:07:49,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:49,967 INFO L225 Difference]: With dead ends: 1964 [2022-11-26 01:07:49,967 INFO L226 Difference]: Without dead ends: 1962 [2022-11-26 01:07:49,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:07:49,970 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2767 mSDsluCounter, 6127 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2773 SdHoareTripleChecker+Valid, 8594 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:49,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2773 Valid, 8594 Invalid, 2550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-26 01:07:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-11-26 01:07:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-11-26 01:07:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1178 states have (on average 1.295415959252971) internal successors, (1526), 1250 states have internal predecessors, (1526), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2809 transitions. [2022-11-26 01:07:50,228 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2809 transitions. Word has length 77 [2022-11-26 01:07:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:50,229 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2809 transitions. [2022-11-26 01:07:50,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 01:07:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2809 transitions. [2022-11-26 01:07:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 01:07:50,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:50,232 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:50,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 01:07:50,232 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:50,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:50,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1825570332, now seen corresponding path program 1 times [2022-11-26 01:07:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:50,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356367707] [2022-11-26 01:07:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:50,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-26 01:07:50,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:50,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356367707] [2022-11-26 01:07:50,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356367707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:50,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:50,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:07:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466663091] [2022-11-26 01:07:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:50,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:07:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:50,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:07:50,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:07:50,609 INFO L87 Difference]: Start difference. First operand 1962 states and 2809 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2022-11-26 01:07:53,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:53,685 INFO L93 Difference]: Finished difference Result 3901 states and 5675 transitions. [2022-11-26 01:07:53,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:07:53,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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 80 [2022-11-26 01:07:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:53,705 INFO L225 Difference]: With dead ends: 3901 [2022-11-26 01:07:53,706 INFO L226 Difference]: Without dead ends: 1958 [2022-11-26 01:07:53,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:07:53,719 INFO L413 NwaCegarLoop]: 2461 mSDtfsCounter, 2755 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:53,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 2461 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 01:07:53,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-11-26 01:07:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1958. [2022-11-26 01:07:54,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1175 states have (on average 1.294468085106383) internal successors, (1521), 1246 states have internal predecessors, (1521), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:07:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2804 transitions. [2022-11-26 01:07:54,034 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2804 transitions. Word has length 80 [2022-11-26 01:07:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:54,034 INFO L495 AbstractCegarLoop]: Abstraction has 1958 states and 2804 transitions. [2022-11-26 01:07:54,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2022-11-26 01:07:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2804 transitions. [2022-11-26 01:07:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 01:07:54,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:54,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:54,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 01:07:54,038 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:07:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash 676151721, now seen corresponding path program 1 times [2022-11-26 01:07:54,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:54,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757028453] [2022-11-26 01:07:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:07:54,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:54,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757028453] [2022-11-26 01:07:54,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757028453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:54,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:54,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:07:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862176020] [2022-11-26 01:07:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:54,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:07:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:07:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:07:54,547 INFO L87 Difference]: Start difference. First operand 1958 states and 2804 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 01:07:56,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:59,699 INFO L93 Difference]: Finished difference Result 1958 states and 2804 transitions. [2022-11-26 01:07:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:07:59,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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 83 [2022-11-26 01:07:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:59,714 INFO L225 Difference]: With dead ends: 1958 [2022-11-26 01:07:59,715 INFO L226 Difference]: Without dead ends: 1956 [2022-11-26 01:07:59,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:59,717 INFO L413 NwaCegarLoop]: 2459 mSDtfsCounter, 2761 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:59,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 4914 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 01:07:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-11-26 01:08:00,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1956. [2022-11-26 01:08:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956 states, 1174 states have (on average 1.2938671209540034) internal successors, (1519), 1244 states have internal predecessors, (1519), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2802 transitions. [2022-11-26 01:08:00,046 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2802 transitions. Word has length 83 [2022-11-26 01:08:00,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:00,050 INFO L495 AbstractCegarLoop]: Abstraction has 1956 states and 2802 transitions. [2022-11-26 01:08:00,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 01:08:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2802 transitions. [2022-11-26 01:08:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-26 01:08:00,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:00,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:00,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 01:08:00,054 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1241896684, now seen corresponding path program 1 times [2022-11-26 01:08:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:00,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620798465] [2022-11-26 01:08:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:00,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:00,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:00,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620798465] [2022-11-26 01:08:00,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620798465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:00,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:00,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496880372] [2022-11-26 01:08:00,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:00,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:00,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:00,605 INFO L87 Difference]: Start difference. First operand 1956 states and 2802 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 01:08:02,718 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 [] [2022-11-26 01:08:05,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:05,769 INFO L93 Difference]: Finished difference Result 1956 states and 2802 transitions. [2022-11-26 01:08:05,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:05,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 85 [2022-11-26 01:08:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:05,779 INFO L225 Difference]: With dead ends: 1956 [2022-11-26 01:08:05,779 INFO L226 Difference]: Without dead ends: 1954 [2022-11-26 01:08:05,780 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 [2022-11-26 01:08:05,781 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 2753 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:05,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 4914 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 01:08:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-11-26 01:08:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2022-11-26 01:08:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1173 states have (on average 1.2932651321398125) internal successors, (1517), 1242 states have internal predecessors, (1517), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:06,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2800 transitions. [2022-11-26 01:08:06,035 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2800 transitions. Word has length 85 [2022-11-26 01:08:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:06,036 INFO L495 AbstractCegarLoop]: Abstraction has 1954 states and 2800 transitions. [2022-11-26 01:08:06,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 01:08:06,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2800 transitions. [2022-11-26 01:08:06,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-26 01:08:06,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:06,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:06,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 01:08:06,039 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:06,040 INFO L85 PathProgramCache]: Analyzing trace with hash -33243925, now seen corresponding path program 1 times [2022-11-26 01:08:06,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:06,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796177298] [2022-11-26 01:08:06,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:06,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:06,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:06,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796177298] [2022-11-26 01:08:06,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796177298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:06,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:06,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:06,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343801705] [2022-11-26 01:08:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:06,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:06,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:06,527 INFO L87 Difference]: Start difference. First operand 1954 states and 2800 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 01:08:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:10,283 INFO L93 Difference]: Finished difference Result 1954 states and 2800 transitions. [2022-11-26 01:08:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 90 [2022-11-26 01:08:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:10,293 INFO L225 Difference]: With dead ends: 1954 [2022-11-26 01:08:10,294 INFO L226 Difference]: Without dead ends: 1952 [2022-11-26 01:08:10,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:10,296 INFO L413 NwaCegarLoop]: 2455 mSDtfsCounter, 2752 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:10,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 4910 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-26 01:08:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2022-11-26 01:08:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1952. [2022-11-26 01:08:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1172 states have (on average 1.2926621160409557) internal successors, (1515), 1240 states have internal predecessors, (1515), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:10,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2798 transitions. [2022-11-26 01:08:10,663 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2798 transitions. Word has length 90 [2022-11-26 01:08:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:10,664 INFO L495 AbstractCegarLoop]: Abstraction has 1952 states and 2798 transitions. [2022-11-26 01:08:10,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 01:08:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2798 transitions. [2022-11-26 01:08:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-26 01:08:10,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:10,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:10,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 01:08:10,668 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1046082255, now seen corresponding path program 1 times [2022-11-26 01:08:10,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:10,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348789547] [2022-11-26 01:08:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:11,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:11,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348789547] [2022-11-26 01:08:11,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348789547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:11,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:11,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:11,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703344106] [2022-11-26 01:08:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:11,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:11,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:11,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:11,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:11,138 INFO L87 Difference]: Start difference. First operand 1952 states and 2798 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 01:08:15,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:15,353 INFO L93 Difference]: Finished difference Result 1952 states and 2798 transitions. [2022-11-26 01:08:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:15,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 95 [2022-11-26 01:08:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:15,362 INFO L225 Difference]: With dead ends: 1952 [2022-11-26 01:08:15,362 INFO L226 Difference]: Without dead ends: 1950 [2022-11-26 01:08:15,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:15,365 INFO L413 NwaCegarLoop]: 2452 mSDtfsCounter, 2749 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2751 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:15,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2751 Valid, 4904 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 01:08:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-11-26 01:08:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2022-11-26 01:08:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1171 states have (on average 1.2920580700256192) internal successors, (1513), 1238 states have internal predecessors, (1513), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2796 transitions. [2022-11-26 01:08:15,594 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2796 transitions. Word has length 95 [2022-11-26 01:08:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:15,595 INFO L495 AbstractCegarLoop]: Abstraction has 1950 states and 2796 transitions. [2022-11-26 01:08:15,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 01:08:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2796 transitions. [2022-11-26 01:08:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-26 01:08:15,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:15,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:15,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 01:08:15,599 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:15,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:15,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1626142588, now seen corresponding path program 1 times [2022-11-26 01:08:15,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:15,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439702580] [2022-11-26 01:08:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:15,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:16,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:16,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439702580] [2022-11-26 01:08:16,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439702580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:16,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:16,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:16,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592403395] [2022-11-26 01:08:16,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:16,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:16,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:16,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:16,090 INFO L87 Difference]: Start difference. First operand 1950 states and 2796 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 01:08:19,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:08:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:21,685 INFO L93 Difference]: Finished difference Result 1950 states and 2796 transitions. [2022-11-26 01:08:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 100 [2022-11-26 01:08:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:21,692 INFO L225 Difference]: With dead ends: 1950 [2022-11-26 01:08:21,692 INFO L226 Difference]: Without dead ends: 1948 [2022-11-26 01:08:21,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:21,694 INFO L413 NwaCegarLoop]: 2451 mSDtfsCounter, 2746 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2748 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:21,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2748 Valid, 4902 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 01:08:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2022-11-26 01:08:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1948. [2022-11-26 01:08:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1170 states have (on average 1.2914529914529915) internal successors, (1511), 1236 states have internal predecessors, (1511), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2794 transitions. [2022-11-26 01:08:21,914 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2794 transitions. Word has length 100 [2022-11-26 01:08:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:21,915 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 2794 transitions. [2022-11-26 01:08:21,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 01:08:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2794 transitions. [2022-11-26 01:08:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-26 01:08:21,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:21,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:21,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 01:08:21,920 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1782703061, now seen corresponding path program 1 times [2022-11-26 01:08:21,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:21,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540701385] [2022-11-26 01:08:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:21,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:22,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:22,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540701385] [2022-11-26 01:08:22,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540701385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:22,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:22,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750274672] [2022-11-26 01:08:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:22,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:22,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:22,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:22,414 INFO L87 Difference]: Start difference. First operand 1948 states and 2794 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 01:08:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:27,936 INFO L93 Difference]: Finished difference Result 1948 states and 2794 transitions. [2022-11-26 01:08:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 105 [2022-11-26 01:08:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:27,943 INFO L225 Difference]: With dead ends: 1948 [2022-11-26 01:08:27,944 INFO L226 Difference]: Without dead ends: 1946 [2022-11-26 01:08:27,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:27,945 INFO L413 NwaCegarLoop]: 2449 mSDtfsCounter, 2743 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:27,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 4898 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 01:08:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-26 01:08:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2022-11-26 01:08:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1169 states have (on average 1.290846877673225) internal successors, (1509), 1234 states have internal predecessors, (1509), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2792 transitions. [2022-11-26 01:08:28,175 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2792 transitions. Word has length 105 [2022-11-26 01:08:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:28,177 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 2792 transitions. [2022-11-26 01:08:28,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 01:08:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2792 transitions. [2022-11-26 01:08:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-26 01:08:28,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:28,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 01:08:28,183 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1164081430, now seen corresponding path program 1 times [2022-11-26 01:08:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:28,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422965493] [2022-11-26 01:08:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:28,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:28,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422965493] [2022-11-26 01:08:28,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422965493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:28,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:28,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:28,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291192507] [2022-11-26 01:08:28,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:28,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:28,692 INFO L87 Difference]: Start difference. First operand 1946 states and 2792 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 01:08:30,501 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 [] [2022-11-26 01:08:32,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:08:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:35,237 INFO L93 Difference]: Finished difference Result 1946 states and 2792 transitions. [2022-11-26 01:08:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 110 [2022-11-26 01:08:35,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:35,246 INFO L225 Difference]: With dead ends: 1946 [2022-11-26 01:08:35,246 INFO L226 Difference]: Without dead ends: 1944 [2022-11-26 01:08:35,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:35,248 INFO L413 NwaCegarLoop]: 2447 mSDtfsCounter, 2740 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:35,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 4894 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-26 01:08:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-11-26 01:08:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-11-26 01:08:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1168 states have (on average 1.2902397260273972) internal successors, (1507), 1232 states have internal predecessors, (1507), 634 states have call successors, (634), 129 states have call predecessors, (634), 129 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2790 transitions. [2022-11-26 01:08:35,474 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2790 transitions. Word has length 110 [2022-11-26 01:08:35,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:35,475 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2790 transitions. [2022-11-26 01:08:35,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 01:08:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2790 transitions. [2022-11-26 01:08:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-26 01:08:35,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:35,479 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:35,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 01:08:35,480 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:35,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:35,481 INFO L85 PathProgramCache]: Analyzing trace with hash -319731758, now seen corresponding path program 1 times [2022-11-26 01:08:35,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:35,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523474605] [2022-11-26 01:08:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:35,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-26 01:08:36,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:36,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523474605] [2022-11-26 01:08:36,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523474605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:36,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:36,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:08:36,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927403507] [2022-11-26 01:08:36,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:36,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:08:36,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:36,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:08:36,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:36,683 INFO L87 Difference]: Start difference. First operand 1944 states and 2790 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 01:08:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:44,202 INFO L93 Difference]: Finished difference Result 1947 states and 2792 transitions. [2022-11-26 01:08:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:08:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 139 [2022-11-26 01:08:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:44,213 INFO L225 Difference]: With dead ends: 1947 [2022-11-26 01:08:44,213 INFO L226 Difference]: Without dead ends: 1945 [2022-11-26 01:08:44,215 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 [2022-11-26 01:08:44,216 INFO L413 NwaCegarLoop]: 2444 mSDtfsCounter, 2671 mSDsluCounter, 4932 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 7376 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:44,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 7376 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-26 01:08:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2022-11-26 01:08:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1945. [2022-11-26 01:08:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1169 states have (on average 1.2891360136869119) internal successors, (1507), 1232 states have internal predecessors, (1507), 634 states have call successors, (634), 130 states have call predecessors, (634), 130 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2790 transitions. [2022-11-26 01:08:44,501 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2790 transitions. Word has length 139 [2022-11-26 01:08:44,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:44,502 INFO L495 AbstractCegarLoop]: Abstraction has 1945 states and 2790 transitions. [2022-11-26 01:08:44,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 01:08:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2790 transitions. [2022-11-26 01:08:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-26 01:08:44,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:44,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:44,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 01:08:44,506 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -220190671, now seen corresponding path program 1 times [2022-11-26 01:08:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:44,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346013116] [2022-11-26 01:08:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:45,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:45,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346013116] [2022-11-26 01:08:45,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346013116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:45,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:45,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052319548] [2022-11-26 01:08:45,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:45,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:45,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:45,082 INFO L87 Difference]: Start difference. First operand 1945 states and 2790 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 01:08:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:49,067 INFO L93 Difference]: Finished difference Result 1945 states and 2790 transitions. [2022-11-26 01:08:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:49,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 115 [2022-11-26 01:08:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:49,075 INFO L225 Difference]: With dead ends: 1945 [2022-11-26 01:08:49,075 INFO L226 Difference]: Without dead ends: 1943 [2022-11-26 01:08:49,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:49,077 INFO L413 NwaCegarLoop]: 2443 mSDtfsCounter, 2735 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:49,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 4886 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 01:08:49,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2022-11-26 01:08:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1943. [2022-11-26 01:08:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1943 states, 1168 states have (on average 1.288527397260274) internal successors, (1505), 1230 states have internal predecessors, (1505), 634 states have call successors, (634), 130 states have call predecessors, (634), 130 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 2788 transitions. [2022-11-26 01:08:49,434 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 2788 transitions. Word has length 115 [2022-11-26 01:08:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:49,435 INFO L495 AbstractCegarLoop]: Abstraction has 1943 states and 2788 transitions. [2022-11-26 01:08:49,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 01:08:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 2788 transitions. [2022-11-26 01:08:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-26 01:08:49,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:49,440 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:49,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 01:08:49,440 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:49,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:49,441 INFO L85 PathProgramCache]: Analyzing trace with hash -203957652, now seen corresponding path program 1 times [2022-11-26 01:08:49,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:49,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426168766] [2022-11-26 01:08:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:49,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:50,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:50,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426168766] [2022-11-26 01:08:50,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426168766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:50,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:50,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981146691] [2022-11-26 01:08:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:50,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:50,527 INFO L87 Difference]: Start difference. First operand 1943 states and 2788 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 01:08:52,046 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 [] [2022-11-26 01:08:55,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:55,381 INFO L93 Difference]: Finished difference Result 1943 states and 2788 transitions. [2022-11-26 01:08:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:08:55,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 120 [2022-11-26 01:08:55,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:55,390 INFO L225 Difference]: With dead ends: 1943 [2022-11-26 01:08:55,391 INFO L226 Difference]: Without dead ends: 1941 [2022-11-26 01:08:55,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:08:55,392 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 2732 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:55,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 4882 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 01:08:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2022-11-26 01:08:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1941. [2022-11-26 01:08:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1167 states have (on average 1.287917737789203) internal successors, (1503), 1228 states have internal predecessors, (1503), 634 states have call successors, (634), 130 states have call predecessors, (634), 130 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:08:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2786 transitions. [2022-11-26 01:08:55,819 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2786 transitions. Word has length 120 [2022-11-26 01:08:55,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:55,822 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 2786 transitions. [2022-11-26 01:08:55,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 01:08:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2786 transitions. [2022-11-26 01:08:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-26 01:08:55,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:55,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:08:55,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 01:08:55,827 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:08:55,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:55,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2105001713, now seen corresponding path program 1 times [2022-11-26 01:08:55,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:55,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598514285] [2022-11-26 01:08:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:08:56,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:56,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598514285] [2022-11-26 01:08:56,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598514285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:56,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:56,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:08:56,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196039818] [2022-11-26 01:08:56,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:56,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:08:56,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:56,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:08:56,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:08:56,387 INFO L87 Difference]: Start difference. First operand 1941 states and 2786 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 01:08:59,510 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 [] [2022-11-26 01:09:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:02,389 INFO L93 Difference]: Finished difference Result 1941 states and 2786 transitions. [2022-11-26 01:09:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 125 [2022-11-26 01:09:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:02,397 INFO L225 Difference]: With dead ends: 1941 [2022-11-26 01:09:02,397 INFO L226 Difference]: Without dead ends: 1939 [2022-11-26 01:09:02,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:02,399 INFO L413 NwaCegarLoop]: 2439 mSDtfsCounter, 2729 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 4878 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:02,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 4878 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 01:09:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2022-11-26 01:09:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1939. [2022-11-26 01:09:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1166 states have (on average 1.2873070325900515) internal successors, (1501), 1226 states have internal predecessors, (1501), 634 states have call successors, (634), 130 states have call predecessors, (634), 130 states have return successors, (649), 616 states have call predecessors, (649), 632 states have call successors, (649) [2022-11-26 01:09:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2784 transitions. [2022-11-26 01:09:02,850 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2784 transitions. Word has length 125 [2022-11-26 01:09:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:02,851 INFO L495 AbstractCegarLoop]: Abstraction has 1939 states and 2784 transitions. [2022-11-26 01:09:02,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 01:09:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2784 transitions. [2022-11-26 01:09:02,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-26 01:09:02,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:02,856 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:02,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 01:09:02,856 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:02,857 INFO L85 PathProgramCache]: Analyzing trace with hash -676196866, now seen corresponding path program 1 times [2022-11-26 01:09:02,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:02,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390515352] [2022-11-26 01:09:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:02,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:02,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:09:02,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952300495] [2022-11-26 01:09:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:02,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:02,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:03,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:09:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:04,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 4175 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 01:09:04,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-26 01:09:05,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:09:05,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:05,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390515352] [2022-11-26 01:09:05,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:09:05,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952300495] [2022-11-26 01:09:05,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952300495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:05,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:05,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 01:09:05,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356374386] [2022-11-26 01:09:05,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:05,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 01:09:05,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:05,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 01:09:05,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-26 01:09:05,174 INFO L87 Difference]: Start difference. First operand 1939 states and 2784 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-26 01:09:13,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:09:14,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:09:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:25,356 INFO L93 Difference]: Finished difference Result 3737 states and 5355 transitions. [2022-11-26 01:09:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 01:09:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 153 [2022-11-26 01:09:25,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:25,370 INFO L225 Difference]: With dead ends: 3737 [2022-11-26 01:09:25,370 INFO L226 Difference]: Without dead ends: 1972 [2022-11-26 01:09:25,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-26 01:09:25,382 INFO L413 NwaCegarLoop]: 2443 mSDtfsCounter, 25 mSDsluCounter, 21810 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24253 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:25,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24253 Invalid, 3593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2022-11-26 01:09:25,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-11-26 01:09:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1948. [2022-11-26 01:09:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1171 states have (on average 1.2860802732707088) internal successors, (1506), 1231 states have internal predecessors, (1506), 638 states have call successors, (638), 130 states have call predecessors, (638), 130 states have return successors, (653), 620 states have call predecessors, (653), 636 states have call successors, (653) [2022-11-26 01:09:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2797 transitions. [2022-11-26 01:09:25,798 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2797 transitions. Word has length 153 [2022-11-26 01:09:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:25,798 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 2797 transitions. [2022-11-26 01:09:25,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-26 01:09:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2797 transitions. [2022-11-26 01:09:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-26 01:09:25,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:25,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:25,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:09:26,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-26 01:09:26,024 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1496505266, now seen corresponding path program 1 times [2022-11-26 01:09:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:26,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591257185] [2022-11-26 01:09:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:09:26,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:26,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591257185] [2022-11-26 01:09:26,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591257185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:26,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:26,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:09:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395461548] [2022-11-26 01:09:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:26,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:09:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:09:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:09:26,513 INFO L87 Difference]: Start difference. First operand 1948 states and 2797 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 01:09:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:31,333 INFO L93 Difference]: Finished difference Result 1948 states and 2797 transitions. [2022-11-26 01:09:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:31,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 130 [2022-11-26 01:09:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:31,343 INFO L225 Difference]: With dead ends: 1948 [2022-11-26 01:09:31,343 INFO L226 Difference]: Without dead ends: 1946 [2022-11-26 01:09:31,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:31,346 INFO L413 NwaCegarLoop]: 2437 mSDtfsCounter, 2726 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:31,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2728 Valid, 4874 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 01:09:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-26 01:09:31,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2022-11-26 01:09:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1170 states have (on average 1.2854700854700856) internal successors, (1504), 1229 states have internal predecessors, (1504), 638 states have call successors, (638), 130 states have call predecessors, (638), 130 states have return successors, (653), 620 states have call predecessors, (653), 636 states have call successors, (653) [2022-11-26 01:09:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2795 transitions. [2022-11-26 01:09:31,859 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2795 transitions. Word has length 130 [2022-11-26 01:09:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:31,859 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 2795 transitions. [2022-11-26 01:09:31,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 01:09:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2795 transitions. [2022-11-26 01:09:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-26 01:09:31,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:31,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:31,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 01:09:31,863 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:31,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:31,864 INFO L85 PathProgramCache]: Analyzing trace with hash -729946070, now seen corresponding path program 1 times [2022-11-26 01:09:31,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:31,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499342637] [2022-11-26 01:09:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:31,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:09:32,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:32,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499342637] [2022-11-26 01:09:32,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499342637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:32,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:32,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:09:32,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865956548] [2022-11-26 01:09:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:32,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:09:32,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:09:32,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:09:32,379 INFO L87 Difference]: Start difference. First operand 1946 states and 2795 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 01:09:34,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:09:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:37,186 INFO L93 Difference]: Finished difference Result 1946 states and 2795 transitions. [2022-11-26 01:09:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:37,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 135 [2022-11-26 01:09:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:37,194 INFO L225 Difference]: With dead ends: 1946 [2022-11-26 01:09:37,194 INFO L226 Difference]: Without dead ends: 1944 [2022-11-26 01:09:37,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:37,197 INFO L413 NwaCegarLoop]: 2435 mSDtfsCounter, 2723 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:37,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 4870 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 01:09:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-11-26 01:09:37,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-11-26 01:09:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1169 states have (on average 1.2848588537211292) internal successors, (1502), 1227 states have internal predecessors, (1502), 638 states have call successors, (638), 130 states have call predecessors, (638), 130 states have return successors, (653), 620 states have call predecessors, (653), 636 states have call successors, (653) [2022-11-26 01:09:37,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2793 transitions. [2022-11-26 01:09:37,694 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2793 transitions. Word has length 135 [2022-11-26 01:09:37,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:37,694 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2793 transitions. [2022-11-26 01:09:37,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 01:09:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2793 transitions. [2022-11-26 01:09:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-26 01:09:37,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:37,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:37,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 01:09:37,699 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:37,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:37,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1135170146, now seen corresponding path program 1 times [2022-11-26 01:09:37,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:37,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947303901] [2022-11-26 01:09:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:37,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:09:38,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947303901] [2022-11-26 01:09:38,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947303901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:38,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:38,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:09:38,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407846336] [2022-11-26 01:09:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:38,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:09:38,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:38,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:09:38,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:09:38,228 INFO L87 Difference]: Start difference. First operand 1944 states and 2793 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 01:09:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:42,170 INFO L93 Difference]: Finished difference Result 1944 states and 2793 transitions. [2022-11-26 01:09:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:42,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 140 [2022-11-26 01:09:42,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:42,182 INFO L225 Difference]: With dead ends: 1944 [2022-11-26 01:09:42,182 INFO L226 Difference]: Without dead ends: 1942 [2022-11-26 01:09:42,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:42,185 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 2720 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:42,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 4866 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-26 01:09:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-11-26 01:09:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1942. [2022-11-26 01:09:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1168 states have (on average 1.2842465753424657) internal successors, (1500), 1225 states have internal predecessors, (1500), 638 states have call successors, (638), 130 states have call predecessors, (638), 130 states have return successors, (653), 620 states have call predecessors, (653), 636 states have call successors, (653) [2022-11-26 01:09:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2791 transitions. [2022-11-26 01:09:42,741 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2791 transitions. Word has length 140 [2022-11-26 01:09:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:42,741 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2791 transitions. [2022-11-26 01:09:42,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 01:09:42,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2791 transitions. [2022-11-26 01:09:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-26 01:09:42,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:42,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:42,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 01:09:42,746 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 320564274, now seen corresponding path program 1 times [2022-11-26 01:09:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:42,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375371704] [2022-11-26 01:09:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:42,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 01:09:43,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:43,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375371704] [2022-11-26 01:09:43,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375371704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:43,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:43,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:09:43,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032251318] [2022-11-26 01:09:43,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:43,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:09:43,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:43,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:09:43,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:09:43,251 INFO L87 Difference]: Start difference. First operand 1942 states and 2791 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 01:09:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:48,016 INFO L93 Difference]: Finished difference Result 1942 states and 2791 transitions. [2022-11-26 01:09:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 145 [2022-11-26 01:09:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:48,027 INFO L225 Difference]: With dead ends: 1942 [2022-11-26 01:09:48,028 INFO L226 Difference]: Without dead ends: 1804 [2022-11-26 01:09:48,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:48,031 INFO L413 NwaCegarLoop]: 2432 mSDtfsCounter, 2717 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 4864 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:48,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 4864 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 01:09:48,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2022-11-26 01:09:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2022-11-26 01:09:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1096 states have (on average 1.2992700729927007) internal successors, (1424), 1152 states have internal predecessors, (1424), 592 states have call successors, (592), 110 states have call predecessors, (592), 111 states have return successors, (608), 575 states have call predecessors, (608), 592 states have call successors, (608) [2022-11-26 01:09:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2624 transitions. [2022-11-26 01:09:48,591 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2624 transitions. Word has length 145 [2022-11-26 01:09:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:48,591 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2624 transitions. [2022-11-26 01:09:48,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 01:09:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2624 transitions. [2022-11-26 01:09:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-26 01:09:48,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:48,595 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:48,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 01:09:48,596 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:09:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash -730868591, now seen corresponding path program 1 times [2022-11-26 01:09:48,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:48,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547432149] [2022-11-26 01:09:48,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:48,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:48,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:09:48,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153521973] [2022-11-26 01:09:48,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:48,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:48,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:48,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:09:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:50,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 4298 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-26 01:09:50,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-26 01:09:50,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:09:50,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547432149] [2022-11-26 01:09:50,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:09:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153521973] [2022-11-26 01:09:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153521973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:50,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:50,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 01:09:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249165703] [2022-11-26 01:09:50,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:50,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 01:09:50,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:50,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 01:09:50,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:09:50,776 INFO L87 Difference]: Start difference. First operand 1804 states and 2624 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 01:10:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:10:03,289 INFO L93 Difference]: Finished difference Result 4145 states and 6124 transitions. [2022-11-26 01:10:03,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 01:10:03,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 178 [2022-11-26 01:10:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:10:03,305 INFO L225 Difference]: With dead ends: 4145 [2022-11-26 01:10:03,305 INFO L226 Difference]: Without dead ends: 2492 [2022-11-26 01:10:03,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-26 01:10:03,315 INFO L413 NwaCegarLoop]: 2566 mSDtfsCounter, 1051 mSDsluCounter, 12615 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 15181 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:10:03,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 15181 Invalid, 2540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-11-26 01:10:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2022-11-26 01:10:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 1806. [2022-11-26 01:10:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1098 states have (on average 1.2987249544626593) internal successors, (1426), 1154 states have internal predecessors, (1426), 592 states have call successors, (592), 110 states have call predecessors, (592), 111 states have return successors, (608), 575 states have call predecessors, (608), 592 states have call successors, (608) [2022-11-26 01:10:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2626 transitions. [2022-11-26 01:10:03,948 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2626 transitions. Word has length 178 [2022-11-26 01:10:03,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:10:03,949 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 2626 transitions. [2022-11-26 01:10:03,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 01:10:03,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2626 transitions. [2022-11-26 01:10:03,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-26 01:10:03,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:10:03,953 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:10:03,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:10:04,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:10:04,173 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:10:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:10:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 713588810, now seen corresponding path program 1 times [2022-11-26 01:10:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:10:04,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008859800] [2022-11-26 01:10:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:04,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:10:04,364 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:10:04,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907800249] [2022-11-26 01:10:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:04,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:10:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:10:04,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:10:04,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 01:10:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:10:06,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 4335 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 01:10:06,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:10:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-26 01:10:06,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:10:06,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:10:06,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008859800] [2022-11-26 01:10:06,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:10:06,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907800249] [2022-11-26 01:10:06,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907800249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:10:06,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:10:06,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 01:10:06,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469772689] [2022-11-26 01:10:06,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:10:06,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 01:10:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:10:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 01:10:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-26 01:10:06,503 INFO L87 Difference]: Start difference. First operand 1806 states and 2626 transitions. Second operand has 12 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-26 01:10:09,376 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 [] [2022-11-26 01:10:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:10:26,394 INFO L93 Difference]: Finished difference Result 3455 states and 5026 transitions. [2022-11-26 01:10:26,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 01:10:26,394 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 194 [2022-11-26 01:10:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:10:26,402 INFO L225 Difference]: With dead ends: 3455 [2022-11-26 01:10:26,402 INFO L226 Difference]: Without dead ends: 1796 [2022-11-26 01:10:26,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-26 01:10:26,411 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 21 mSDsluCounter, 22812 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 25101 SdHoareTripleChecker+Invalid, 3584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:10:26,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 25101 Invalid, 3584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2022-11-26 01:10:26,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2022-11-26 01:10:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2022-11-26 01:10:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1092 states have (on average 1.2985347985347986) internal successors, (1418), 1148 states have internal predecessors, (1418), 589 states have call successors, (589), 109 states have call predecessors, (589), 110 states have return successors, (605), 572 states have call predecessors, (605), 589 states have call successors, (605) [2022-11-26 01:10:26,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2612 transitions. [2022-11-26 01:10:26,921 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2612 transitions. Word has length 194 [2022-11-26 01:10:26,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:10:26,922 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 2612 transitions. [2022-11-26 01:10:26,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-26 01:10:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2612 transitions. [2022-11-26 01:10:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-26 01:10:26,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:10:26,926 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:10:26,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:10:27,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:10:27,136 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:10:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:10:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1164027045, now seen corresponding path program 1 times [2022-11-26 01:10:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:10:27,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103330766] [2022-11-26 01:10:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:10:27,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:10:27,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815935543] [2022-11-26 01:10:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:27,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:10:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:10:27,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:10:27,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 01:10:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:10:29,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 4433 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 01:10:29,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:10:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-26 01:10:30,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:10:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-26 01:10:31,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:10:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103330766] [2022-11-26 01:10:31,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:10:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815935543] [2022-11-26 01:10:31,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815935543] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-26 01:10:31,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:10:31,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 24 [2022-11-26 01:10:31,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190876269] [2022-11-26 01:10:31,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:10:31,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 01:10:31,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:10:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 01:10:31,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2022-11-26 01:10:31,067 INFO L87 Difference]: Start difference. First operand 1796 states and 2612 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-26 01:10:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:10:40,623 INFO L93 Difference]: Finished difference Result 1851 states and 2665 transitions. [2022-11-26 01:10:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 01:10:40,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 209 [2022-11-26 01:10:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:10:40,633 INFO L225 Difference]: With dead ends: 1851 [2022-11-26 01:10:40,633 INFO L226 Difference]: Without dead ends: 1849 [2022-11-26 01:10:40,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2022-11-26 01:10:40,636 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 5195 mSDsluCounter, 5137 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 3398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2278 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:10:40,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 7454 Invalid, 3398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2278 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-26 01:10:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-11-26 01:10:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1847. [2022-11-26 01:10:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1122 states have (on average 1.2923351158645275) internal successors, (1450), 1178 states have internal predecessors, (1450), 598 states have call successors, (598), 121 states have call predecessors, (598), 122 states have return successors, (614), 581 states have call predecessors, (614), 598 states have call successors, (614) [2022-11-26 01:10:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2662 transitions. [2022-11-26 01:10:41,013 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2662 transitions. Word has length 209 [2022-11-26 01:10:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:10:41,013 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2662 transitions. [2022-11-26 01:10:41,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-26 01:10:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2662 transitions. [2022-11-26 01:10:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-26 01:10:41,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:10:41,017 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-26 01:10:41,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 01:10:41,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:10:41,231 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:10:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:10:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1387132306, now seen corresponding path program 1 times [2022-11-26 01:10:41,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:10:41,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831032368] [2022-11-26 01:10:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:41,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:10:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:10:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-11-26 01:10:42,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:10:42,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831032368] [2022-11-26 01:10:42,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831032368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:10:42,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:10:42,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:10:42,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12925687] [2022-11-26 01:10:42,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:10:42,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:10:42,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:10:42,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:10:42,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:10:42,238 INFO L87 Difference]: Start difference. First operand 1847 states and 2662 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-26 01:10:43,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:10:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:10:50,185 INFO L93 Difference]: Finished difference Result 1847 states and 2662 transitions. [2022-11-26 01:10:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:10:50,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 219 [2022-11-26 01:10:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:10:50,192 INFO L225 Difference]: With dead ends: 1847 [2022-11-26 01:10:50,192 INFO L226 Difference]: Without dead ends: 1845 [2022-11-26 01:10:50,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:10:50,194 INFO L413 NwaCegarLoop]: 2291 mSDtfsCounter, 45 mSDsluCounter, 6828 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 9119 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:10:50,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 9119 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-26 01:10:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2022-11-26 01:10:50,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1845. [2022-11-26 01:10:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1121 states have (on average 1.2917038358608386) internal successors, (1448), 1176 states have internal predecessors, (1448), 598 states have call successors, (598), 121 states have call predecessors, (598), 122 states have return successors, (614), 581 states have call predecessors, (614), 598 states have call successors, (614) [2022-11-26 01:10:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2660 transitions. [2022-11-26 01:10:50,717 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2660 transitions. Word has length 219 [2022-11-26 01:10:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:10:50,718 INFO L495 AbstractCegarLoop]: Abstraction has 1845 states and 2660 transitions. [2022-11-26 01:10:50,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-26 01:10:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2660 transitions. [2022-11-26 01:10:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-26 01:10:50,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:10:50,723 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:10:50,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-26 01:10:50,724 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:10:50,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:10:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash -761211252, now seen corresponding path program 1 times [2022-11-26 01:10:50,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:10:50,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995579867] [2022-11-26 01:10:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:10:50,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:10:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:10:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-11-26 01:10:52,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:10:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995579867] [2022-11-26 01:10:52,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995579867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:10:52,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:10:52,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:10:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239666257] [2022-11-26 01:10:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:10:52,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 01:10:52,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:10:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 01:10:52,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:10:52,227 INFO L87 Difference]: Start difference. First operand 1845 states and 2660 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-26 01:11:07,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:07,443 INFO L93 Difference]: Finished difference Result 3398 states and 4893 transitions. [2022-11-26 01:11:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 01:11:07,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) Word has length 239 [2022-11-26 01:11:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:07,450 INFO L225 Difference]: With dead ends: 3398 [2022-11-26 01:11:07,450 INFO L226 Difference]: Without dead ends: 1857 [2022-11-26 01:11:07,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:11:07,456 INFO L413 NwaCegarLoop]: 2295 mSDtfsCounter, 5 mSDsluCounter, 13726 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16021 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:07,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16021 Invalid, 2147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-11-26 01:11:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2022-11-26 01:11:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1851. [2022-11-26 01:11:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1125 states have (on average 1.2906666666666666) internal successors, (1452), 1179 states have internal predecessors, (1452), 599 states have call successors, (599), 121 states have call predecessors, (599), 123 states have return successors, (623), 584 states have call predecessors, (623), 599 states have call successors, (623) [2022-11-26 01:11:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2674 transitions. [2022-11-26 01:11:07,875 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2674 transitions. Word has length 239 [2022-11-26 01:11:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:07,876 INFO L495 AbstractCegarLoop]: Abstraction has 1851 states and 2674 transitions. [2022-11-26 01:11:07,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-26 01:11:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2674 transitions. [2022-11-26 01:11:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-26 01:11:07,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:07,879 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:07,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-26 01:11:07,879 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-26 01:11:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:07,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1384981101, now seen corresponding path program 1 times [2022-11-26 01:11:07,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:07,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998996749] [2022-11-26 01:11:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:07,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:08,032 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:11:08,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033708365] [2022-11-26 01:11:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:11:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:08,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:11:08,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee57110-d10a-4828-9ac5-3de015de7223/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 01:11:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:10,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 4545 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-26 01:11:10,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:11:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-26 01:11:10,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:11:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-26 01:11:10,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:10,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998996749] [2022-11-26 01:11:10,924 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:11:10,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033708365] [2022-11-26 01:11:10,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033708365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:11:10,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58689968] [2022-11-26 01:11:10,965 INFO L159 IcfgInterpreter]: Started Sifa with 136 locations of interest [2022-11-26 01:11:10,965 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:11:10,972 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:11:10,979 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:11:10,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:12:19,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 01:12:19,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9