./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/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_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 16:16:14,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:16:14,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:16:14,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:16:14,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:16:14,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:16:14,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:16:14,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:16:14,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:16:14,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:16:14,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:16:14,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:16:14,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:16:14,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:16:14,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:16:14,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:16:14,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:16:14,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:16:14,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:16:14,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:16:14,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:16:14,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:16:14,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:16:14,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:16:14,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:16:14,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:16:14,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:16:14,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:16:14,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:16:14,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:16:14,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:16:14,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:16:14,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:16:14,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:16:14,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:16:14,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:16:14,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:16:14,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:16:14,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:16:14,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:16:14,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:16:14,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 16:16:14,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:16:14,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:16:14,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:16:14,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:16:14,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:16:14,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:16:14,117 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:16:14,117 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:16:14,117 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:16:14,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:16:14,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:16:14,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:16:14,119 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:16:14,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:16:14,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:16:14,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:16:14,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:16:14,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:16:14,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:16:14,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:16:14,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:16:14,121 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:16:14,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:16:14,123 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_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-12-14 16:16:14,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:16:14,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:16:14,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:16:14,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:16:14,317 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:16:14,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-12-14 16:16:16,916 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:16:17,425 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:16:17,425 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-12-14 16:16:17,475 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/data/a85d91a9c/25ba42c6ff2a4cc18a774cba7a5b5c19/FLAG10c10322b [2022-12-14 16:16:17,487 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/data/a85d91a9c/25ba42c6ff2a4cc18a774cba7a5b5c19 [2022-12-14 16:16:17,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:16:17,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:16:17,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:16:17,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:16:17,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:16:17,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:16:17" (1/1) ... [2022-12-14 16:16:17,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b105f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:17, skipping insertion in model container [2022-12-14 16:16:17,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:16:17" (1/1) ... [2022-12-14 16:16:17,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:16:17,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:16:18,131 WARN L623 FunctionHandler]: Unknown extern function __bread_gfp [2022-12-14 16:16:18,137 WARN L623 FunctionHandler]: Unknown extern function __getblk_gfp [2022-12-14 16:16:18,142 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:18,144 WARN L623 FunctionHandler]: Unknown extern function __wait_on_buffer [2022-12-14 16:16:18,178 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,183 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-12-14 16:16:18,186 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,188 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-12-14 16:16:18,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,193 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,199 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:18,242 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 16:16:18,249 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 16:16:18,319 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:18,320 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 16:16:18,320 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 16:16:18,320 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 16:16:18,323 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 16:16:18,325 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:18,326 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 16:16:18,326 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 16:16:18,326 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 16:16:18,328 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,330 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 16:16:18,332 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,332 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,333 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,333 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,334 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,335 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,335 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,337 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 16:16:18,337 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 16:16:18,338 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 16:16:18,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,340 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,341 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,346 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,351 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,352 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,352 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,352 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,353 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:18,406 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,414 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,422 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,422 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,422 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,449 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-12-14 16:16:18,449 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-12-14 16:16:18,471 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,472 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,477 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,478 WARN L623 FunctionHandler]: Unknown extern function d_obtain_alias [2022-12-14 16:16:18,492 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,494 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,551 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:18,555 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:18,605 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 16:16:18,623 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,626 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,634 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,637 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,649 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,661 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,662 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,665 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,671 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,678 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,679 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_408 [2022-12-14 16:16:18,679 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:18,680 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 16:16:18,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,700 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,702 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_491 [2022-12-14 16:16:18,702 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:18,717 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,727 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,728 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,744 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 16:16:18,748 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 16:16:18,788 WARN L623 FunctionHandler]: Unknown extern function iget_locked [2022-12-14 16:16:18,789 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,790 WARN L623 FunctionHandler]: Unknown extern function iget_failed [2022-12-14 16:16:18,790 WARN L623 FunctionHandler]: Unknown extern function unlock_new_inode [2022-12-14 16:16:18,793 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,795 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,797 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,798 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,800 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,801 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,802 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,803 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,805 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,806 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,807 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,808 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,808 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:18,809 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,810 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,810 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:18,811 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,812 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,812 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:18,813 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:18,813 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:18,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,836 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,837 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,837 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 16:16:18,839 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,844 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,847 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 16:16:18,848 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:18,849 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:18,849 WARN L623 FunctionHandler]: Unknown extern function d_splice_alias [2022-12-14 16:16:18,849 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:18,850 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,050 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-12-14 16:16:19,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,090 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,091 WARN L623 FunctionHandler]: Unknown extern function sb_min_blocksize [2022-12-14 16:16:19,091 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 16:16:19,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,104 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-12-14 16:16:19,104 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,106 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,108 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-12-14 16:16:19,108 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,109 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,111 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,112 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,113 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,122 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,123 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,124 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,124 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,125 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,126 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,126 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,131 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,133 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,133 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-12-14 16:16:19,134 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-12-14 16:16:19,134 WARN L623 FunctionHandler]: Unknown extern function iput [2022-12-14 16:16:19,134 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-12-14 16:16:19,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,136 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,136 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,136 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,137 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,137 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,137 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,137 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,138 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,143 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,148 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-12-14 16:16:19,153 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,153 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,153 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,154 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,154 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,154 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,159 WARN L623 FunctionHandler]: Unknown extern function mount_bdev [2022-12-14 16:16:19,164 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-12-14 16:16:19,168 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-12-14 16:16:19,172 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-12-14 16:16:19,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,190 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-12-14 16:16:19,457 WARN L623 FunctionHandler]: Unknown extern function kill_block_super [2022-12-14 16:16:19,471 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-12-14 16:16:19,471 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-12-14 16:16:19,476 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:19,481 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:19,514 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,515 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,516 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_100 [2022-12-14 16:16:19,516 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:19,516 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:19,517 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-12-14 16:16:19,517 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-12-14 16:16:19,517 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-12-14 16:16:19,518 WARN L623 FunctionHandler]: Unknown extern function generic_getxattr [2022-12-14 16:16:19,536 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,536 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,537 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,554 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,554 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 16:16:19,554 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,555 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,575 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 16:16:19,576 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,589 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 16:16:19,606 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,606 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:19,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,635 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,635 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,639 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,639 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,640 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,644 WARN L623 FunctionHandler]: Unknown extern function lz4_decompress_unknownoutputsize [2022-12-14 16:16:19,666 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,667 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,671 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,671 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,671 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,677 WARN L623 FunctionHandler]: Unknown extern function lzo1x_decompress_safe [2022-12-14 16:16:19,706 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,711 WARN L623 FunctionHandler]: Unknown extern function xz_dec_init [2022-12-14 16:16:19,711 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,716 WARN L623 FunctionHandler]: Unknown extern function xz_dec_end [2022-12-14 16:16:19,716 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,720 WARN L623 FunctionHandler]: Unknown extern function xz_dec_reset [2022-12-14 16:16:19,721 WARN L623 FunctionHandler]: Unknown extern function xz_dec_run [2022-12-14 16:16:19,750 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate_workspacesize [2022-12-14 16:16:19,750 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:19,750 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,755 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:19,755 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:19,760 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateInit2 [2022-12-14 16:16:19,760 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate [2022-12-14 16:16:19,761 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateEnd [2022-12-14 16:16:20,134 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:20,330 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 16:16:20,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-12-14 16:16:20,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-12-14 16:16:20,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-12-14 16:16:20,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-12-14 16:16:20,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-12-14 16:16:20,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-12-14 16:16:20,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-12-14 16:16:20,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-12-14 16:16:20,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-12-14 16:16:20,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-12-14 16:16:20,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-12-14 16:16:20,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-12-14 16:16:20,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-12-14 16:16:20,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-12-14 16:16:20,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-12-14 16:16:20,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-12-14 16:16:20,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-12-14 16:16:20,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-12-14 16:16:20,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-12-14 16:16:20,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-12-14 16:16:20,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-12-14 16:16:20,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-12-14 16:16:20,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-12-14 16:16:20,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-12-14 16:16:20,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-12-14 16:16:20,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-12-14 16:16:20,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-12-14 16:16:20,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-12-14 16:16:20,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-12-14 16:16:20,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-12-14 16:16:20,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-12-14 16:16:20,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-12-14 16:16:20,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-12-14 16:16:20,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-12-14 16:16:20,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-12-14 16:16:20,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-12-14 16:16:20,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-12-14 16:16:20,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-12-14 16:16:20,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-12-14 16:16:20,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-12-14 16:16:20,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-12-14 16:16:20,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-12-14 16:16:20,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-12-14 16:16:20,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-12-14 16:16:20,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-12-14 16:16:20,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-12-14 16:16:20,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-12-14 16:16:20,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-12-14 16:16:20,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-12-14 16:16:20,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-12-14 16:16:20,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-12-14 16:16:20,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-12-14 16:16:20,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-12-14 16:16:20,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-12-14 16:16:20,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-12-14 16:16:20,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-12-14 16:16:20,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-12-14 16:16:20,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-12-14 16:16:20,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-12-14 16:16:20,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-12-14 16:16:20,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-12-14 16:16:20,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-12-14 16:16:20,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-12-14 16:16:20,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-12-14 16:16:20,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-12-14 16:16:20,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-12-14 16:16:20,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-12-14 16:16:20,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-12-14 16:16:20,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-12-14 16:16:20,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-12-14 16:16:20,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-12-14 16:16:20,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-12-14 16:16:20,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-12-14 16:16:20,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-12-14 16:16:20,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-12-14 16:16:20,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-12-14 16:16:20,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-12-14 16:16:20,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-12-14 16:16:20,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-12-14 16:16:20,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-12-14 16:16:20,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-12-14 16:16:20,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-12-14 16:16:20,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-12-14 16:16:20,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-12-14 16:16:20,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-12-14 16:16:20,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-12-14 16:16:20,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-12-14 16:16:20,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-12-14 16:16:20,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:16:20,855 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:16:20,919 WARN L623 FunctionHandler]: Unknown extern function __bread_gfp [2022-12-14 16:16:20,920 WARN L623 FunctionHandler]: Unknown extern function __getblk_gfp [2022-12-14 16:16:20,920 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:20,920 WARN L623 FunctionHandler]: Unknown extern function __wait_on_buffer [2022-12-14 16:16:20,925 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,926 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-12-14 16:16:20,928 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,929 WARN L623 FunctionHandler]: Unknown extern function ll_rw_block [2022-12-14 16:16:20,930 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,931 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,931 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:20,932 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 16:16:20,932 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 16:16:20,934 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:20,935 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 16:16:20,935 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 16:16:20,935 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 16:16:20,936 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 16:16:20,937 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 16:16:20,937 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 16:16:20,938 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 16:16:20,938 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 16:16:20,938 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,939 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,939 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 16:16:20,940 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,941 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,941 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,941 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,941 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,943 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 16:16:20,943 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 16:16:20,943 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 16:16:20,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,946 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,949 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,949 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,949 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,949 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,950 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:20,952 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,954 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,958 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,959 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,961 WARN L623 FunctionHandler]: Unknown extern function default_llseek [2022-12-14 16:16:20,962 WARN L623 FunctionHandler]: Unknown extern function generic_read_dir [2022-12-14 16:16:20,963 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,964 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,965 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,965 WARN L623 FunctionHandler]: Unknown extern function d_obtain_alias [2022-12-14 16:16:20,968 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,968 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,970 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:20,970 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:20,971 WARN L623 FunctionHandler]: Unknown extern function pagecache_get_page [2022-12-14 16:16:20,972 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,974 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,975 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,976 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,977 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,978 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,979 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,979 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,981 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,982 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,984 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,985 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,989 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,989 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_408 [2022-12-14 16:16:20,989 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:20,990 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 16:16:20,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:20,995 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:20,995 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_491 [2022-12-14 16:16:20,996 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:20,998 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:20,999 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,000 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,001 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 16:16:21,001 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 16:16:21,002 WARN L623 FunctionHandler]: Unknown extern function iget_locked [2022-12-14 16:16:21,002 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,003 WARN L623 FunctionHandler]: Unknown extern function iget_failed [2022-12-14 16:16:21,003 WARN L623 FunctionHandler]: Unknown extern function unlock_new_inode [2022-12-14 16:16:21,006 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,027 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,029 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,029 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,032 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,033 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,035 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,035 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,037 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,038 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,040 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,041 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,041 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:21,041 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,043 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,043 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:21,043 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,044 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,044 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:21,045 WARN L623 FunctionHandler]: Unknown extern function set_nlink [2022-12-14 16:16:21,045 WARN L623 FunctionHandler]: Unknown extern function init_special_inode [2022-12-14 16:16:21,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,046 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,048 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,048 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,048 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-12-14 16:16:21,049 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,050 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,050 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,053 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 16:16:21,055 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,056 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,056 WARN L623 FunctionHandler]: Unknown extern function d_splice_alias [2022-12-14 16:16:21,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,057 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,059 WARN L623 FunctionHandler]: Unknown extern function __insert_inode_hash [2022-12-14 16:16:21,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,061 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,062 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,063 WARN L623 FunctionHandler]: Unknown extern function sb_min_blocksize [2022-12-14 16:16:21,063 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 16:16:21,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,064 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-12-14 16:16:21,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,067 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,068 WARN L623 FunctionHandler]: Unknown extern function bdevname [2022-12-14 16:16:21,068 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,068 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,069 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,069 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,070 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,070 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,071 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,072 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,072 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,073 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,074 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,074 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,079 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,079 WARN L623 FunctionHandler]: Unknown extern function new_inode [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function make_bad_inode [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function iput [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function d_make_root [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,080 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,081 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,083 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,083 WARN L623 FunctionHandler]: Unknown extern function sync_filesystem [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,084 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,085 WARN L623 FunctionHandler]: Unknown extern function mount_bdev [2022-12-14 16:16:21,085 WARN L623 FunctionHandler]: Unknown extern function inode_init_once [2022-12-14 16:16:21,085 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-12-14 16:16:21,085 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-12-14 16:16:21,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,087 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-12-14 16:16:21,094 WARN L623 FunctionHandler]: Unknown extern function kill_block_super [2022-12-14 16:16:21,104 WARN L623 FunctionHandler]: Unknown extern function register_filesystem [2022-12-14 16:16:21,105 WARN L623 FunctionHandler]: Unknown extern function unregister_filesystem [2022-12-14 16:16:21,106 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:21,106 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 16:16:21,108 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,109 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,110 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,110 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_100 [2022-12-14 16:16:21,111 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:21,111 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 16:16:21,112 WARN L623 FunctionHandler]: Unknown extern function page_put_link [2022-12-14 16:16:21,112 WARN L623 FunctionHandler]: Unknown extern function generic_readlink [2022-12-14 16:16:21,112 WARN L623 FunctionHandler]: Unknown extern function page_follow_link_light [2022-12-14 16:16:21,112 WARN L623 FunctionHandler]: Unknown extern function generic_getxattr [2022-12-14 16:16:21,116 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,116 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,117 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,119 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,121 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,121 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 16:16:21,122 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,123 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,130 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 16:16:21,131 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,133 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 16:16:21,139 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,139 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 16:16:21,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,141 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,141 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,141 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,142 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,142 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,142 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,143 WARN L623 FunctionHandler]: Unknown extern function lz4_decompress_unknownoutputsize [2022-12-14 16:16:21,145 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,146 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,146 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,146 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,146 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,146 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,147 WARN L623 FunctionHandler]: Unknown extern function lzo1x_decompress_safe [2022-12-14 16:16:21,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,151 WARN L623 FunctionHandler]: Unknown extern function xz_dec_init [2022-12-14 16:16:21,151 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,152 WARN L623 FunctionHandler]: Unknown extern function xz_dec_end [2022-12-14 16:16:21,152 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,153 WARN L623 FunctionHandler]: Unknown extern function xz_dec_reset [2022-12-14 16:16:21,154 WARN L623 FunctionHandler]: Unknown extern function xz_dec_run [2022-12-14 16:16:21,156 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate_workspacesize [2022-12-14 16:16:21,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 16:16:21,157 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,157 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 16:16:21,157 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 16:16:21,158 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateInit2 [2022-12-14 16:16:21,159 WARN L623 FunctionHandler]: Unknown extern function zlib_inflate [2022-12-14 16:16:21,159 WARN L623 FunctionHandler]: Unknown extern function zlib_inflateEnd [2022-12-14 16:16:21,171 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 16:16:21,176 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 16:16:21,218 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-12-14 16:16:21,218 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-12-14 16:16:21,218 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-12-14 16:16:21,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-12-14 16:16:21,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-12-14 16:16:21,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-12-14 16:16:21,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-12-14 16:16:21,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-12-14 16:16:21,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-12-14 16:16:21,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-12-14 16:16:21,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-12-14 16:16:21,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-12-14 16:16:21,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-12-14 16:16:21,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-12-14 16:16:21,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-12-14 16:16:21,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-12-14 16:16:21,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-12-14 16:16:21,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-12-14 16:16:21,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-12-14 16:16:21,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-12-14 16:16:21,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-12-14 16:16:21,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-12-14 16:16:21,222 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-12-14 16:16:21,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-12-14 16:16:21,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-12-14 16:16:21,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-12-14 16:16:21,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-12-14 16:16:21,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-12-14 16:16:21,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-12-14 16:16:21,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-12-14 16:16:21,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-12-14 16:16:21,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-12-14 16:16:21,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-12-14 16:16:21,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-12-14 16:16:21,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-12-14 16:16:21,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-12-14 16:16:21,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-12-14 16:16:21,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-12-14 16:16:21,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-12-14 16:16:21,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-12-14 16:16:21,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-12-14 16:16:21,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-12-14 16:16:21,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-12-14 16:16:21,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-12-14 16:16:21,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-12-14 16:16:21,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-12-14 16:16:21,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-12-14 16:16:21,229 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-12-14 16:16:21,229 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-12-14 16:16:21,229 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-12-14 16:16:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-12-14 16:16:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-12-14 16:16:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-12-14 16:16:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-12-14 16:16:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-12-14 16:16:21,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-12-14 16:16:21,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-12-14 16:16:21,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-12-14 16:16:21,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-12-14 16:16:21,232 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-12-14 16:16:21,232 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-12-14 16:16:21,232 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-12-14 16:16:21,232 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-12-14 16:16:21,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-12-14 16:16:21,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-12-14 16:16:21,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-12-14 16:16:21,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-12-14 16:16:21,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-12-14 16:16:21,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-12-14 16:16:21,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-12-14 16:16:21,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-12-14 16:16:21,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-12-14 16:16:21,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-12-14 16:16:21,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-12-14 16:16:21,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-12-14 16:16:21,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-12-14 16:16:21,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-12-14 16:16:21,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-12-14 16:16:21,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-12-14 16:16:21,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-12-14 16:16:21,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-12-14 16:16:21,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-12-14 16:16:21,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-12-14 16:16:21,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:16:21,389 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:16:21,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21 WrapperNode [2022-12-14 16:16:21,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:16:21,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:16:21,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:16:21,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:16:21,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,603 INFO L138 Inliner]: procedures = 716, calls = 4122, calls flagged for inlining = 351, calls inlined = 253, statements flattened = 8119 [2022-12-14 16:16:21,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:16:21,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:16:21,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:16:21,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:16:21,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:16:21,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:16:21,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:16:21,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:16:21,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (1/1) ... [2022-12-14 16:16:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:16:21,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:16:21,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:16:21,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:16:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2022-12-14 16:16:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2022-12-14 16:16:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2022-12-14 16:16:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2022-12-14 16:16:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2022-12-14 16:16:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2022-12-14 16:16:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2022-12-14 16:16:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2022-12-14 16:16:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 16:16:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 16:16:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_lookup [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_lookup [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-12-14 16:16:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 16:16:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2022-12-14 16:16:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2022-12-14 16:16:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 16:16:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2022-12-14 16:16:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 16:16:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 16:16:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 16:16:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 16:16:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2022-12-14 16:16:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:16:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 16:16:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2022-12-14 16:16:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2022-12-14 16:16:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-12-14 16:16:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2022-12-14 16:16:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2022-12-14 16:16:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-12-14 16:16:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 16:16:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2022-12-14 16:16:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2022-12-14 16:16:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2022-12-14 16:16:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 16:16:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 16:16:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 16:16:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2022-12-14 16:16:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2022-12-14 16:16:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 16:16:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 16:16:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-12-14 16:16:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-12-14 16:16:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:16:21,888 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-12-14 16:16:22,685 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:16:22,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:16:23,336 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 16:16:28,084 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:16:29,073 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:16:29,074 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 16:16:29,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:16:29 BoogieIcfgContainer [2022-12-14 16:16:29,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:16:29,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:16:29,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:16:29,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:16:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:16:17" (1/3) ... [2022-12-14 16:16:29,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7856d190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:16:29, skipping insertion in model container [2022-12-14 16:16:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:16:21" (2/3) ... [2022-12-14 16:16:29,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7856d190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:16:29, skipping insertion in model container [2022-12-14 16:16:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:16:29" (3/3) ... [2022-12-14 16:16:29,084 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-12-14 16:16:29,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:16:29,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-14 16:16:29,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:16:29,176 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;@38a2d918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:16:29,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-14 16:16:29,187 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) [2022-12-14 16:16:29,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 16:16:29,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:29,194 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] [2022-12-14 16:16:29,195 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)] === [2022-12-14 16:16:29,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1042486099, now seen corresponding path program 1 times [2022-12-14 16:16:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:29,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819013893] [2022-12-14 16:16:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:16:29,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:29,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819013893] [2022-12-14 16:16:29,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819013893] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:29,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:29,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:29,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188618430] [2022-12-14 16:16:29,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:29,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:29,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:29,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:29,963 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) [2022-12-14 16:16:32,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:32,761 INFO L93 Difference]: Finished difference Result 3977 states and 5896 transitions. [2022-12-14 16:16:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:32,763 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 [2022-12-14 16:16:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:32,780 INFO L225 Difference]: With dead ends: 3977 [2022-12-14 16:16:32,780 INFO L226 Difference]: Without dead ends: 1980 [2022-12-14 16:16:32,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:32,793 INFO L413 NwaCegarLoop]: 2513 mSDtfsCounter, 2834 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:32,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 5017 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 16:16:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2022-12-14 16:16:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1980. [2022-12-14 16:16:32,922 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) [2022-12-14 16:16:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2811 transitions. [2022-12-14 16:16:32,933 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2811 transitions. Word has length 35 [2022-12-14 16:16:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:32,934 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2811 transitions. [2022-12-14 16:16:32,934 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) [2022-12-14 16:16:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2811 transitions. [2022-12-14 16:16:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 16:16:32,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:32,935 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] [2022-12-14 16:16:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 16:16:32,936 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)] === [2022-12-14 16:16:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1106100753, now seen corresponding path program 1 times [2022-12-14 16:16:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:32,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911775617] [2022-12-14 16:16:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:16:33,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:33,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911775617] [2022-12-14 16:16:33,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911775617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:33,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:33,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:33,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632898184] [2022-12-14 16:16:33,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:33,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:33,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:33,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:33,292 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) [2022-12-14 16:16:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:35,770 INFO L93 Difference]: Finished difference Result 1980 states and 2811 transitions. [2022-12-14 16:16:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:35,770 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 [2022-12-14 16:16:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:35,779 INFO L225 Difference]: With dead ends: 1980 [2022-12-14 16:16:35,779 INFO L226 Difference]: Without dead ends: 1978 [2022-12-14 16:16:35,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:35,781 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2799 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:35,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 4966 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 16:16:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-12-14 16:16:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2022-12-14 16:16:35,850 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) [2022-12-14 16:16:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2809 transitions. [2022-12-14 16:16:35,858 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2809 transitions. Word has length 37 [2022-12-14 16:16:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:35,858 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2809 transitions. [2022-12-14 16:16:35,858 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) [2022-12-14 16:16:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2809 transitions. [2022-12-14 16:16:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 16:16:35,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:35,860 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] [2022-12-14 16:16:35,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 16:16:35,860 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)] === [2022-12-14 16:16:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2110411584, now seen corresponding path program 1 times [2022-12-14 16:16:35,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:35,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480421379] [2022-12-14 16:16:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:35,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:16:36,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:36,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480421379] [2022-12-14 16:16:36,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480421379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:36,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:36,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:36,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581168081] [2022-12-14 16:16:36,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:36,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:36,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:36,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:36,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:36,175 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) [2022-12-14 16:16:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:38,676 INFO L93 Difference]: Finished difference Result 1978 states and 2809 transitions. [2022-12-14 16:16:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:38,676 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 [2022-12-14 16:16:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:38,683 INFO L225 Difference]: With dead ends: 1978 [2022-12-14 16:16:38,683 INFO L226 Difference]: Without dead ends: 1976 [2022-12-14 16:16:38,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:38,685 INFO L413 NwaCegarLoop]: 2484 mSDtfsCounter, 2791 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:38,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 4965 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 16:16:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2022-12-14 16:16:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2022-12-14 16:16:38,791 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) [2022-12-14 16:16:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2807 transitions. [2022-12-14 16:16:38,801 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2807 transitions. Word has length 39 [2022-12-14 16:16:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:38,801 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2807 transitions. [2022-12-14 16:16:38,802 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) [2022-12-14 16:16:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2807 transitions. [2022-12-14 16:16:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 16:16:38,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:38,803 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] [2022-12-14 16:16:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 16:16:38,803 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)] === [2022-12-14 16:16:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 885500101, now seen corresponding path program 1 times [2022-12-14 16:16:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:38,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821889351] [2022-12-14 16:16:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:16:39,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:39,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821889351] [2022-12-14 16:16:39,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821889351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:39,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:39,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014633863] [2022-12-14 16:16:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:39,086 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) [2022-12-14 16:16:42,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:42,000 INFO L93 Difference]: Finished difference Result 1976 states and 2807 transitions. [2022-12-14 16:16:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:42,001 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 [2022-12-14 16:16:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:42,010 INFO L225 Difference]: With dead ends: 1976 [2022-12-14 16:16:42,010 INFO L226 Difference]: Without dead ends: 1974 [2022-12-14 16:16:42,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:42,012 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2783 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:42,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 4964 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 16:16:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2022-12-14 16:16:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2022-12-14 16:16:42,127 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) [2022-12-14 16:16:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2805 transitions. [2022-12-14 16:16:42,138 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2805 transitions. Word has length 41 [2022-12-14 16:16:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:42,139 INFO L495 AbstractCegarLoop]: Abstraction has 1974 states and 2805 transitions. [2022-12-14 16:16:42,139 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) [2022-12-14 16:16:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2805 transitions. [2022-12-14 16:16:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 16:16:42,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:42,141 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] [2022-12-14 16:16:42,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 16:16:42,141 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)] === [2022-12-14 16:16:42,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:42,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1100530039, now seen corresponding path program 1 times [2022-12-14 16:16:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:42,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575905140] [2022-12-14 16:16:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:42,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:16:42,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575905140] [2022-12-14 16:16:42,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575905140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:42,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:42,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:42,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646650739] [2022-12-14 16:16:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:42,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:42,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:42,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:42,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:42,488 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) [2022-12-14 16:16:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:45,328 INFO L93 Difference]: Finished difference Result 1974 states and 2805 transitions. [2022-12-14 16:16:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:45,329 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 [2022-12-14 16:16:45,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:45,335 INFO L225 Difference]: With dead ends: 1974 [2022-12-14 16:16:45,335 INFO L226 Difference]: Without dead ends: 1972 [2022-12-14 16:16:45,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:45,336 INFO L413 NwaCegarLoop]: 2480 mSDtfsCounter, 2785 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:45,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 4960 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:16:45,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-12-14 16:16:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2022-12-14 16:16:45,404 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) [2022-12-14 16:16:45,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2803 transitions. [2022-12-14 16:16:45,410 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2803 transitions. Word has length 48 [2022-12-14 16:16:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:45,410 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2803 transitions. [2022-12-14 16:16:45,411 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) [2022-12-14 16:16:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2803 transitions. [2022-12-14 16:16:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 16:16:45,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:45,412 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] [2022-12-14 16:16:45,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 16:16:45,412 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)] === [2022-12-14 16:16:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:45,412 INFO L85 PathProgramCache]: Analyzing trace with hash -632735794, now seen corresponding path program 1 times [2022-12-14 16:16:45,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:45,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401888388] [2022-12-14 16:16:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:45,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:16:45,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401888388] [2022-12-14 16:16:45,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401888388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:45,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:45,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:45,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595512039] [2022-12-14 16:16:45,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:45,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:45,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:45,652 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) [2022-12-14 16:16:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:47,976 INFO L93 Difference]: Finished difference Result 1972 states and 2803 transitions. [2022-12-14 16:16:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:47,976 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 [2022-12-14 16:16:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:47,982 INFO L225 Difference]: With dead ends: 1972 [2022-12-14 16:16:47,982 INFO L226 Difference]: Without dead ends: 1970 [2022-12-14 16:16:47,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:47,983 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 2782 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:47,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 4956 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 16:16:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-12-14 16:16:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1970. [2022-12-14 16:16:48,059 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) [2022-12-14 16:16:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2801 transitions. [2022-12-14 16:16:48,064 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2801 transitions. Word has length 53 [2022-12-14 16:16:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:48,064 INFO L495 AbstractCegarLoop]: Abstraction has 1970 states and 2801 transitions. [2022-12-14 16:16:48,065 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) [2022-12-14 16:16:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2801 transitions. [2022-12-14 16:16:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 16:16:48,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:48,065 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] [2022-12-14 16:16:48,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 16:16:48,066 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)] === [2022-12-14 16:16:48,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:48,066 INFO L85 PathProgramCache]: Analyzing trace with hash -582522063, now seen corresponding path program 1 times [2022-12-14 16:16:48,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:48,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214827385] [2022-12-14 16:16:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:48,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:16:48,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:48,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214827385] [2022-12-14 16:16:48,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214827385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:48,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:48,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:48,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564934269] [2022-12-14 16:16:48,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:48,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:48,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:48,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:48,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:48,323 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) [2022-12-14 16:16:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:50,942 INFO L93 Difference]: Finished difference Result 1970 states and 2801 transitions. [2022-12-14 16:16:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:50,942 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 [2022-12-14 16:16:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:50,948 INFO L225 Difference]: With dead ends: 1970 [2022-12-14 16:16:50,948 INFO L226 Difference]: Without dead ends: 1968 [2022-12-14 16:16:50,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:50,949 INFO L413 NwaCegarLoop]: 2476 mSDtfsCounter, 2779 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:50,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 4952 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 16:16:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2022-12-14 16:16:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1968. [2022-12-14 16:16:51,051 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) [2022-12-14 16:16:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2799 transitions. [2022-12-14 16:16:51,057 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2799 transitions. Word has length 58 [2022-12-14 16:16:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:51,057 INFO L495 AbstractCegarLoop]: Abstraction has 1968 states and 2799 transitions. [2022-12-14 16:16:51,057 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) [2022-12-14 16:16:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2799 transitions. [2022-12-14 16:16:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 16:16:51,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:51,058 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] [2022-12-14 16:16:51,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 16:16:51,058 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)] === [2022-12-14 16:16:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1835755061, now seen corresponding path program 1 times [2022-12-14 16:16:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:51,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657362206] [2022-12-14 16:16:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:16:51,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657362206] [2022-12-14 16:16:51,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657362206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:51,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:51,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:16:51,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614434231] [2022-12-14 16:16:51,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:51,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:16:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:16:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:16:51,317 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) [2022-12-14 16:16:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:16:54,109 INFO L93 Difference]: Finished difference Result 1968 states and 2799 transitions. [2022-12-14 16:16:54,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:16:54,110 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 [2022-12-14 16:16:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:16:54,115 INFO L225 Difference]: With dead ends: 1968 [2022-12-14 16:16:54,115 INFO L226 Difference]: Without dead ends: 1966 [2022-12-14 16:16:54,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:16:54,116 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 2776 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 16:16:54,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2778 Valid, 4948 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 16:16:54,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-12-14 16:16:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1966. [2022-12-14 16:16:54,201 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) [2022-12-14 16:16:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2797 transitions. [2022-12-14 16:16:54,207 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2797 transitions. Word has length 63 [2022-12-14 16:16:54,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:16:54,207 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2797 transitions. [2022-12-14 16:16:54,208 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) [2022-12-14 16:16:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2797 transitions. [2022-12-14 16:16:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 16:16:54,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:16:54,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:16:54,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 16:16:54,209 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)] === [2022-12-14 16:16:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:16:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash 886610426, now seen corresponding path program 1 times [2022-12-14 16:16:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:16:54,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763753292] [2022-12-14 16:16:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:16:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:16:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:16:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 16:16:54,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:16:54,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763753292] [2022-12-14 16:16:54,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763753292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:16:54,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:16:54,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 16:16:54,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189401242] [2022-12-14 16:16:54,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:16:54,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 16:16:54,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:16:54,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 16:16:54,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 16:16:54,897 INFO L87 Difference]: Start difference. First operand 1966 states and 2797 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2022-12-14 16:16:56,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:17:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:02,811 INFO L93 Difference]: Finished difference Result 1966 states and 2797 transitions. [2022-12-14 16:17:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:17:02,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 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 [2022-12-14 16:17:02,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:02,817 INFO L225 Difference]: With dead ends: 1966 [2022-12-14 16:17:02,817 INFO L226 Difference]: Without dead ends: 1964 [2022-12-14 16:17:02,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 16:17:02,818 INFO L413 NwaCegarLoop]: 2473 mSDtfsCounter, 2773 mSDsluCounter, 6145 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 8618 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:02,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 8618 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 16:17:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2022-12-14 16:17:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1964. [2022-12-14 16:17:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1178 states have (on average 1.297962648556876) internal successors, (1529), 1253 states have internal predecessors, (1529), 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) [2022-12-14 16:17:02,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2795 transitions. [2022-12-14 16:17:02,910 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2795 transitions. Word has length 64 [2022-12-14 16:17:02,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:02,910 INFO L495 AbstractCegarLoop]: Abstraction has 1964 states and 2795 transitions. [2022-12-14 16:17:02,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2022-12-14 16:17:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2795 transitions. [2022-12-14 16:17:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 16:17:02,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:02,911 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] [2022-12-14 16:17:02,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 16:17:02,911 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)] === [2022-12-14 16:17:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1586490417, now seen corresponding path program 1 times [2022-12-14 16:17:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:02,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130457029] [2022-12-14 16:17:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:03,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130457029] [2022-12-14 16:17:03,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130457029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:03,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:03,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817158854] [2022-12-14 16:17:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:03,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:03,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:03,160 INFO L87 Difference]: Start difference. First operand 1964 states and 2795 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) [2022-12-14 16:17:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:06,524 INFO L93 Difference]: Finished difference Result 1964 states and 2795 transitions. [2022-12-14 16:17:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:06,525 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 [2022-12-14 16:17:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:06,530 INFO L225 Difference]: With dead ends: 1964 [2022-12-14 16:17:06,530 INFO L226 Difference]: Without dead ends: 1962 [2022-12-14 16:17:06,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:06,531 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 2771 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2773 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, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:06,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2773 Valid, 4940 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 16:17:06,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-12-14 16:17:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-12-14 16:17:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1177 states have (on average 1.2973661852166525) internal successors, (1527), 1251 states have internal predecessors, (1527), 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) [2022-12-14 16:17:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2793 transitions. [2022-12-14 16:17:06,636 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2793 transitions. Word has length 68 [2022-12-14 16:17:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:06,637 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2793 transitions. [2022-12-14 16:17:06,637 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) [2022-12-14 16:17:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2793 transitions. [2022-12-14 16:17:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 16:17:06,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:06,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:17:06,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 16:17:06,638 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-12-14 16:17:06,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:06,638 INFO L85 PathProgramCache]: Analyzing trace with hash -861670097, now seen corresponding path program 1 times [2022-12-14 16:17:06,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609466757] [2022-12-14 16:17:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:06,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 16:17:06,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:06,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609466757] [2022-12-14 16:17:06,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609466757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:06,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:06,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 16:17:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458304015] [2022-12-14 16:17:06,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:06,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:17:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:06,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:17:06,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:17:06,831 INFO L87 Difference]: Start difference. First operand 1962 states and 2793 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 16:17:08,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:08,513 INFO L93 Difference]: Finished difference Result 3903 states and 5646 transitions. [2022-12-14 16:17:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:17:08,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (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 67 [2022-12-14 16:17:08,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:08,521 INFO L225 Difference]: With dead ends: 3903 [2022-12-14 16:17:08,521 INFO L226 Difference]: Without dead ends: 1958 [2022-12-14 16:17:08,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:17:08,528 INFO L413 NwaCegarLoop]: 2465 mSDtfsCounter, 2759 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2759 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:08,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2759 Valid, 2465 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 16:17:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-12-14 16:17:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1958. [2022-12-14 16:17:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1174 states have (on average 1.2964224872231687) internal successors, (1522), 1247 states have internal predecessors, (1522), 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) [2022-12-14 16:17:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2788 transitions. [2022-12-14 16:17:08,634 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2788 transitions. Word has length 67 [2022-12-14 16:17:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:08,634 INFO L495 AbstractCegarLoop]: Abstraction has 1958 states and 2788 transitions. [2022-12-14 16:17:08,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 16:17:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2788 transitions. [2022-12-14 16:17:08,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 16:17:08,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:08,635 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] [2022-12-14 16:17:08,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 16:17:08,635 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-12-14 16:17:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:08,635 INFO L85 PathProgramCache]: Analyzing trace with hash -110482567, now seen corresponding path program 1 times [2022-12-14 16:17:08,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:08,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661215856] [2022-12-14 16:17:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:08,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:08,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:08,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661215856] [2022-12-14 16:17:08,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661215856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:08,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:08,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:08,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214445845] [2022-12-14 16:17:08,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:08,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:08,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:08,874 INFO L87 Difference]: Start difference. First operand 1958 states and 2788 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) [2022-12-14 16:17:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:11,776 INFO L93 Difference]: Finished difference Result 1958 states and 2788 transitions. [2022-12-14 16:17:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:11,777 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 [2022-12-14 16:17:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:11,784 INFO L225 Difference]: With dead ends: 1958 [2022-12-14 16:17:11,784 INFO L226 Difference]: Without dead ends: 1956 [2022-12-14 16:17:11,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:11,786 INFO L413 NwaCegarLoop]: 2463 mSDtfsCounter, 2763 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:11,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2765 Valid, 4926 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:17:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-12-14 16:17:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1956. [2022-12-14 16:17:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956 states, 1173 states have (on average 1.2958226768968457) internal successors, (1520), 1245 states have internal predecessors, (1520), 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) [2022-12-14 16:17:11,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2786 transitions. [2022-12-14 16:17:11,908 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2786 transitions. Word has length 73 [2022-12-14 16:17:11,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:11,908 INFO L495 AbstractCegarLoop]: Abstraction has 1956 states and 2786 transitions. [2022-12-14 16:17:11,908 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) [2022-12-14 16:17:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2786 transitions. [2022-12-14 16:17:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 16:17:11,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:11,909 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] [2022-12-14 16:17:11,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 16:17:11,910 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-12-14 16:17:11,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:11,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1950642243, now seen corresponding path program 1 times [2022-12-14 16:17:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:11,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687383997] [2022-12-14 16:17:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:11,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:12,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:12,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687383997] [2022-12-14 16:17:12,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687383997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:12,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:12,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:12,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788176719] [2022-12-14 16:17:12,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:12,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:12,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:12,135 INFO L87 Difference]: Start difference. First operand 1956 states and 2786 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) [2022-12-14 16:17:14,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:14,716 INFO L93 Difference]: Finished difference Result 1956 states and 2786 transitions. [2022-12-14 16:17:14,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:14,716 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 [2022-12-14 16:17:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:14,722 INFO L225 Difference]: With dead ends: 1956 [2022-12-14 16:17:14,722 INFO L226 Difference]: Without dead ends: 1954 [2022-12-14 16:17:14,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:14,723 INFO L413 NwaCegarLoop]: 2461 mSDtfsCounter, 2760 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 4922 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:14,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 4922 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 16:17:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-12-14 16:17:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2022-12-14 16:17:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1172 states have (on average 1.295221843003413) internal successors, (1518), 1243 states have internal predecessors, (1518), 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) [2022-12-14 16:17:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2784 transitions. [2022-12-14 16:17:14,849 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2784 transitions. Word has length 78 [2022-12-14 16:17:14,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:14,849 INFO L495 AbstractCegarLoop]: Abstraction has 1954 states and 2784 transitions. [2022-12-14 16:17:14,849 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) [2022-12-14 16:17:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2784 transitions. [2022-12-14 16:17:14,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 16:17:14,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:14,851 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] [2022-12-14 16:17:14,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 16:17:14,851 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-12-14 16:17:14,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1808174997, now seen corresponding path program 1 times [2022-12-14 16:17:14,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:14,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733212333] [2022-12-14 16:17:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:14,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:15,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:15,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733212333] [2022-12-14 16:17:15,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733212333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:15,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:15,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:15,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756851137] [2022-12-14 16:17:15,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:15,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:15,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:15,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:15,079 INFO L87 Difference]: Start difference. First operand 1954 states and 2784 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) [2022-12-14 16:17:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:17,738 INFO L93 Difference]: Finished difference Result 1954 states and 2784 transitions. [2022-12-14 16:17:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:17,738 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 [2022-12-14 16:17:17,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:17,744 INFO L225 Difference]: With dead ends: 1954 [2022-12-14 16:17:17,744 INFO L226 Difference]: Without dead ends: 1952 [2022-12-14 16:17:17,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:17,745 INFO L413 NwaCegarLoop]: 2459 mSDtfsCounter, 2761 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:17,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 4914 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 16:17:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2022-12-14 16:17:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1952. [2022-12-14 16:17:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1171 states have (on average 1.2946199829205807) internal successors, (1516), 1241 states have internal predecessors, (1516), 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) [2022-12-14 16:17:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2782 transitions. [2022-12-14 16:17:17,867 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2782 transitions. Word has length 83 [2022-12-14 16:17:17,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:17,867 INFO L495 AbstractCegarLoop]: Abstraction has 1952 states and 2782 transitions. [2022-12-14 16:17:17,867 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) [2022-12-14 16:17:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2782 transitions. [2022-12-14 16:17:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 16:17:17,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:17,868 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] [2022-12-14 16:17:17,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 16:17:17,868 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-12-14 16:17:17,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:17,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1805737262, now seen corresponding path program 1 times [2022-12-14 16:17:17,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:17,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666525066] [2022-12-14 16:17:17,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:17,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:18,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:18,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666525066] [2022-12-14 16:17:18,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666525066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:18,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:18,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:18,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731330891] [2022-12-14 16:17:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:18,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:18,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:18,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:18,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:18,089 INFO L87 Difference]: Start difference. First operand 1952 states and 2782 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) [2022-12-14 16:17:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:21,005 INFO L93 Difference]: Finished difference Result 1952 states and 2782 transitions. [2022-12-14 16:17:21,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:21,006 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 [2022-12-14 16:17:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:21,011 INFO L225 Difference]: With dead ends: 1952 [2022-12-14 16:17:21,011 INFO L226 Difference]: Without dead ends: 1950 [2022-12-14 16:17:21,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:21,012 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 2753 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:21,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 4914 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 16:17:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-12-14 16:17:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2022-12-14 16:17:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1170 states have (on average 1.294017094017094) internal successors, (1514), 1239 states have internal predecessors, (1514), 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) [2022-12-14 16:17:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2780 transitions. [2022-12-14 16:17:21,138 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2780 transitions. Word has length 85 [2022-12-14 16:17:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:21,139 INFO L495 AbstractCegarLoop]: Abstraction has 1950 states and 2780 transitions. [2022-12-14 16:17:21,139 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) [2022-12-14 16:17:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2780 transitions. [2022-12-14 16:17:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 16:17:21,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:21,140 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] [2022-12-14 16:17:21,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 16:17:21,140 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-12-14 16:17:21,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1314518287, now seen corresponding path program 1 times [2022-12-14 16:17:21,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:21,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653552117] [2022-12-14 16:17:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:21,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:21,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653552117] [2022-12-14 16:17:21,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653552117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:21,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:21,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459044249] [2022-12-14 16:17:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:21,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:21,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:21,365 INFO L87 Difference]: Start difference. First operand 1950 states and 2780 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) [2022-12-14 16:17:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:24,500 INFO L93 Difference]: Finished difference Result 1950 states and 2780 transitions. [2022-12-14 16:17:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:24,500 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 [2022-12-14 16:17:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:24,505 INFO L225 Difference]: With dead ends: 1950 [2022-12-14 16:17:24,505 INFO L226 Difference]: Without dead ends: 1948 [2022-12-14 16:17:24,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:24,506 INFO L413 NwaCegarLoop]: 2455 mSDtfsCounter, 2752 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:24,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 4910 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 16:17:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2022-12-14 16:17:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1948. [2022-12-14 16:17:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1169 states have (on average 1.2934131736526946) internal successors, (1512), 1237 states have internal predecessors, (1512), 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) [2022-12-14 16:17:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2778 transitions. [2022-12-14 16:17:24,643 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2778 transitions. Word has length 90 [2022-12-14 16:17:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:24,644 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 2778 transitions. [2022-12-14 16:17:24,644 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) [2022-12-14 16:17:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2778 transitions. [2022-12-14 16:17:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 16:17:24,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:24,645 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] [2022-12-14 16:17:24,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 16:17:24,645 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-12-14 16:17:24,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1022476946, now seen corresponding path program 1 times [2022-12-14 16:17:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:24,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683474628] [2022-12-14 16:17:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:24,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:24,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:24,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683474628] [2022-12-14 16:17:24,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683474628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:24,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:24,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243586646] [2022-12-14 16:17:24,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:24,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:24,871 INFO L87 Difference]: Start difference. First operand 1948 states and 2778 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) [2022-12-14 16:17:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:27,350 INFO L93 Difference]: Finished difference Result 1948 states and 2778 transitions. [2022-12-14 16:17:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:27,351 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 [2022-12-14 16:17:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:27,358 INFO L225 Difference]: With dead ends: 1948 [2022-12-14 16:17:27,358 INFO L226 Difference]: Without dead ends: 1946 [2022-12-14 16:17:27,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:27,359 INFO L413 NwaCegarLoop]: 2452 mSDtfsCounter, 2749 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:27,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2751 Valid, 4904 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 16:17:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-12-14 16:17:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2022-12-14 16:17:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1168 states have (on average 1.292808219178082) internal successors, (1510), 1235 states have internal predecessors, (1510), 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) [2022-12-14 16:17:27,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2776 transitions. [2022-12-14 16:17:27,499 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2776 transitions. Word has length 95 [2022-12-14 16:17:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:27,500 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 2776 transitions. [2022-12-14 16:17:27,500 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) [2022-12-14 16:17:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2776 transitions. [2022-12-14 16:17:27,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 16:17:27,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:27,501 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] [2022-12-14 16:17:27,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 16:17:27,501 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-12-14 16:17:27,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:27,502 INFO L85 PathProgramCache]: Analyzing trace with hash 73289948, now seen corresponding path program 1 times [2022-12-14 16:17:27,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:27,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14559623] [2022-12-14 16:17:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:27,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:27,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:27,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14559623] [2022-12-14 16:17:27,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14559623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:27,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:27,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395550207] [2022-12-14 16:17:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:27,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:27,717 INFO L87 Difference]: Start difference. First operand 1946 states and 2776 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) [2022-12-14 16:17:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:30,991 INFO L93 Difference]: Finished difference Result 1946 states and 2776 transitions. [2022-12-14 16:17:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:30,991 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 [2022-12-14 16:17:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:30,998 INFO L225 Difference]: With dead ends: 1946 [2022-12-14 16:17:30,998 INFO L226 Difference]: Without dead ends: 1944 [2022-12-14 16:17:30,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:30,999 INFO L413 NwaCegarLoop]: 2451 mSDtfsCounter, 2746 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:30,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2748 Valid, 4902 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 16:17:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-12-14 16:17:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-12-14 16:17:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1167 states have (on average 1.2922022279348757) internal successors, (1508), 1233 states have internal predecessors, (1508), 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) [2022-12-14 16:17:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2774 transitions. [2022-12-14 16:17:31,141 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2774 transitions. Word has length 100 [2022-12-14 16:17:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:31,141 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2774 transitions. [2022-12-14 16:17:31,141 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) [2022-12-14 16:17:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2774 transitions. [2022-12-14 16:17:31,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 16:17:31,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:31,142 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] [2022-12-14 16:17:31,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 16:17:31,143 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-12-14 16:17:31,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:31,143 INFO L85 PathProgramCache]: Analyzing trace with hash -200433973, now seen corresponding path program 1 times [2022-12-14 16:17:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:31,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090322323] [2022-12-14 16:17:31,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:31,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:31,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:31,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090322323] [2022-12-14 16:17:31,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090322323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:31,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:31,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522480527] [2022-12-14 16:17:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:31,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:31,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:31,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:31,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:31,372 INFO L87 Difference]: Start difference. First operand 1944 states and 2774 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) [2022-12-14 16:17:34,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:34,018 INFO L93 Difference]: Finished difference Result 1944 states and 2774 transitions. [2022-12-14 16:17:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:34,018 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 [2022-12-14 16:17:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:34,023 INFO L225 Difference]: With dead ends: 1944 [2022-12-14 16:17:34,023 INFO L226 Difference]: Without dead ends: 1942 [2022-12-14 16:17:34,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:34,024 INFO L413 NwaCegarLoop]: 2449 mSDtfsCounter, 2743 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:34,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 4898 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 16:17:34,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-12-14 16:17:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1942. [2022-12-14 16:17:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1166 states have (on average 1.2915951972555746) internal successors, (1506), 1231 states have internal predecessors, (1506), 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) [2022-12-14 16:17:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2772 transitions. [2022-12-14 16:17:34,165 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2772 transitions. Word has length 105 [2022-12-14 16:17:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:34,165 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2772 transitions. [2022-12-14 16:17:34,165 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) [2022-12-14 16:17:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2772 transitions. [2022-12-14 16:17:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 16:17:34,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:34,167 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] [2022-12-14 16:17:34,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 16:17:34,167 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-12-14 16:17:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash -992817256, now seen corresponding path program 1 times [2022-12-14 16:17:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512847972] [2022-12-14 16:17:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:34,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:34,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512847972] [2022-12-14 16:17:34,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512847972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:34,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:34,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:34,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051178241] [2022-12-14 16:17:34,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:34,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:34,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:34,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:34,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:34,385 INFO L87 Difference]: Start difference. First operand 1942 states and 2772 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) [2022-12-14 16:17:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:37,357 INFO L93 Difference]: Finished difference Result 1942 states and 2772 transitions. [2022-12-14 16:17:37,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:37,357 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 [2022-12-14 16:17:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:37,361 INFO L225 Difference]: With dead ends: 1942 [2022-12-14 16:17:37,361 INFO L226 Difference]: Without dead ends: 1940 [2022-12-14 16:17:37,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:37,362 INFO L413 NwaCegarLoop]: 2447 mSDtfsCounter, 2740 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:37,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 4894 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 16:17:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-12-14 16:17:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2022-12-14 16:17:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1165 states have (on average 1.2909871244635194) internal successors, (1504), 1229 states have internal predecessors, (1504), 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) [2022-12-14 16:17:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2770 transitions. [2022-12-14 16:17:37,503 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2770 transitions. Word has length 110 [2022-12-14 16:17:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:37,503 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 2770 transitions. [2022-12-14 16:17:37,503 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) [2022-12-14 16:17:37,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2770 transitions. [2022-12-14 16:17:37,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 16:17:37,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:37,505 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] [2022-12-14 16:17:37,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 16:17:37,505 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-12-14 16:17:37,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:37,505 INFO L85 PathProgramCache]: Analyzing trace with hash -15015640, now seen corresponding path program 1 times [2022-12-14 16:17:37,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:37,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298068224] [2022-12-14 16:17:37,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:37,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:37,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:37,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298068224] [2022-12-14 16:17:37,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298068224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:37,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:37,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:37,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416037765] [2022-12-14 16:17:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:37,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:37,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:37,759 INFO L87 Difference]: Start difference. First operand 1940 states and 2770 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) [2022-12-14 16:17:39,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:17:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:41,544 INFO L93 Difference]: Finished difference Result 1940 states and 2770 transitions. [2022-12-14 16:17:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:41,545 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 [2022-12-14 16:17:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:41,550 INFO L225 Difference]: With dead ends: 1940 [2022-12-14 16:17:41,551 INFO L226 Difference]: Without dead ends: 1938 [2022-12-14 16:17:41,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:41,552 INFO L413 NwaCegarLoop]: 2445 mSDtfsCounter, 2737 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 4890 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 [2022-12-14 16:17:41,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 4890 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 16:17:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2022-12-14 16:17:41,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1938. [2022-12-14 16:17:41,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1164 states have (on average 1.2903780068728523) internal successors, (1502), 1227 states have internal predecessors, (1502), 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) [2022-12-14 16:17:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2768 transitions. [2022-12-14 16:17:41,709 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2768 transitions. Word has length 115 [2022-12-14 16:17:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:41,709 INFO L495 AbstractCegarLoop]: Abstraction has 1938 states and 2768 transitions. [2022-12-14 16:17:41,710 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) [2022-12-14 16:17:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2768 transitions. [2022-12-14 16:17:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 16:17:41,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:41,711 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] [2022-12-14 16:17:41,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 16:17:41,711 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)] === [2022-12-14 16:17:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash 455889760, now seen corresponding path program 1 times [2022-12-14 16:17:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:41,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404080525] [2022-12-14 16:17:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-12-14 16:17:42,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:42,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404080525] [2022-12-14 16:17:42,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404080525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:42,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:42,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:17:42,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784453368] [2022-12-14 16:17:42,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:42,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:17:42,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:42,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:17:42,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:42,465 INFO L87 Difference]: Start difference. First operand 1938 states and 2768 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) [2022-12-14 16:17:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:46,031 INFO L93 Difference]: Finished difference Result 1941 states and 2770 transitions. [2022-12-14 16:17:46,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 16:17:46,031 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 [2022-12-14 16:17:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:46,037 INFO L225 Difference]: With dead ends: 1941 [2022-12-14 16:17:46,037 INFO L226 Difference]: Without dead ends: 1939 [2022-12-14 16:17:46,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:17:46,039 INFO L413 NwaCegarLoop]: 2442 mSDtfsCounter, 2669 mSDsluCounter, 4928 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 7370 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:46,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 7370 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 16:17:46,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2022-12-14 16:17:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1939. [2022-12-14 16:17:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1165 states have (on average 1.2892703862660944) internal successors, (1502), 1227 states have internal predecessors, (1502), 634 states have call successors, (634), 130 states have call predecessors, (634), 129 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-12-14 16:17:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2768 transitions. [2022-12-14 16:17:46,212 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2768 transitions. Word has length 139 [2022-12-14 16:17:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:46,212 INFO L495 AbstractCegarLoop]: Abstraction has 1939 states and 2768 transitions. [2022-12-14 16:17:46,212 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) [2022-12-14 16:17:46,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2768 transitions. [2022-12-14 16:17:46,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 16:17:46,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:46,214 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] [2022-12-14 16:17:46,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 16:17:46,214 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-12-14 16:17:46,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:46,214 INFO L85 PathProgramCache]: Analyzing trace with hash 286996348, now seen corresponding path program 1 times [2022-12-14 16:17:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:46,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832045191] [2022-12-14 16:17:46,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:46,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:46,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:46,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832045191] [2022-12-14 16:17:46,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832045191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:46,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:46,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:46,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597063637] [2022-12-14 16:17:46,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:46,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:46,750 INFO L87 Difference]: Start difference. First operand 1939 states and 2768 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) [2022-12-14 16:17:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:49,780 INFO L93 Difference]: Finished difference Result 1939 states and 2768 transitions. [2022-12-14 16:17:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:49,780 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 [2022-12-14 16:17:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:49,786 INFO L225 Difference]: With dead ends: 1939 [2022-12-14 16:17:49,786 INFO L226 Difference]: Without dead ends: 1937 [2022-12-14 16:17:49,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:49,786 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 2732 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:49,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 4882 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:17:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-12-14 16:17:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1937. [2022-12-14 16:17:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1164 states have (on average 1.288659793814433) internal successors, (1500), 1225 states have internal predecessors, (1500), 634 states have call successors, (634), 130 states have call predecessors, (634), 129 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-12-14 16:17:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2766 transitions. [2022-12-14 16:17:49,959 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2766 transitions. Word has length 120 [2022-12-14 16:17:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:49,959 INFO L495 AbstractCegarLoop]: Abstraction has 1937 states and 2766 transitions. [2022-12-14 16:17:49,959 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) [2022-12-14 16:17:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2766 transitions. [2022-12-14 16:17:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-14 16:17:49,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:49,961 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] [2022-12-14 16:17:49,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 16:17:49,961 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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)] === [2022-12-14 16:17:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash -113200795, now seen corresponding path program 1 times [2022-12-14 16:17:49,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:49,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253215452] [2022-12-14 16:17:49,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:49,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:50,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:50,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253215452] [2022-12-14 16:17:50,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253215452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:50,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:50,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612411826] [2022-12-14 16:17:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:50,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:50,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:50,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:50,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:50,195 INFO L87 Difference]: Start difference. First operand 1937 states and 2766 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) [2022-12-14 16:17:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:53,160 INFO L93 Difference]: Finished difference Result 1937 states and 2766 transitions. [2022-12-14 16:17:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:53,160 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 [2022-12-14 16:17:53,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:53,164 INFO L225 Difference]: With dead ends: 1937 [2022-12-14 16:17:53,164 INFO L226 Difference]: Without dead ends: 1935 [2022-12-14 16:17:53,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:53,165 INFO L413 NwaCegarLoop]: 2439 mSDtfsCounter, 2729 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:53,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 4878 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:17:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2022-12-14 16:17:53,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2022-12-14 16:17:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1163 states have (on average 1.2880481513327602) internal successors, (1498), 1223 states have internal predecessors, (1498), 634 states have call successors, (634), 130 states have call predecessors, (634), 129 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-12-14 16:17:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2764 transitions. [2022-12-14 16:17:53,346 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2764 transitions. Word has length 125 [2022-12-14 16:17:53,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:53,347 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2764 transitions. [2022-12-14 16:17:53,347 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) [2022-12-14 16:17:53,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2764 transitions. [2022-12-14 16:17:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 16:17:53,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:53,348 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] [2022-12-14 16:17:53,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 16:17:53,349 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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)] === [2022-12-14 16:17:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash 241064382, now seen corresponding path program 1 times [2022-12-14 16:17:53,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:53,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754433212] [2022-12-14 16:17:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:53,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:53,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:17:53,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:53,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754433212] [2022-12-14 16:17:53,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754433212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:53,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:53,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:17:53,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563783534] [2022-12-14 16:17:53,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:53,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:17:53,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:53,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:17:53,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:17:53,565 INFO L87 Difference]: Start difference. First operand 1935 states and 2764 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) [2022-12-14 16:17:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:17:55,893 INFO L93 Difference]: Finished difference Result 1935 states and 2764 transitions. [2022-12-14 16:17:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:17:55,893 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 [2022-12-14 16:17:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:17:55,897 INFO L225 Difference]: With dead ends: 1935 [2022-12-14 16:17:55,897 INFO L226 Difference]: Without dead ends: 1933 [2022-12-14 16:17:55,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:17:55,898 INFO L413 NwaCegarLoop]: 2437 mSDtfsCounter, 2726 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:17:55,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2728 Valid, 4874 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 16:17:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-12-14 16:17:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1933. [2022-12-14 16:17:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1162 states have (on average 1.2874354561101549) internal successors, (1496), 1221 states have internal predecessors, (1496), 634 states have call successors, (634), 130 states have call predecessors, (634), 129 states have return successors, (632), 615 states have call predecessors, (632), 632 states have call successors, (632) [2022-12-14 16:17:56,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2762 transitions. [2022-12-14 16:17:56,083 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2762 transitions. Word has length 130 [2022-12-14 16:17:56,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:17:56,083 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2762 transitions. [2022-12-14 16:17:56,083 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) [2022-12-14 16:17:56,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2762 transitions. [2022-12-14 16:17:56,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-14 16:17:56,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:17:56,085 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] [2022-12-14 16:17:56,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 16:17:56,085 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)] === [2022-12-14 16:17:56,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:17:56,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1414787270, now seen corresponding path program 1 times [2022-12-14 16:17:56,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:17:56,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647580529] [2022-12-14 16:17:56,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:56,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:17:56,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:17:56,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936796575] [2022-12-14 16:17:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:17:56,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:17:56,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:17:56,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:17:56,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:17:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:17:57,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 4175 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-14 16:17:57,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:17:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-12-14 16:17:57,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:17:57,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:17:57,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647580529] [2022-12-14 16:17:57,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:17:57,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936796575] [2022-12-14 16:17:57,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936796575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:17:57,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:17:57,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 16:17:57,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999877756] [2022-12-14 16:17:57,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:17:57,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 16:17:57,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:17:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 16:17:57,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 16:17:57,195 INFO L87 Difference]: Start difference. First operand 1933 states and 2762 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) [2022-12-14 16:18:09,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:09,119 INFO L93 Difference]: Finished difference Result 3727 states and 5316 transitions. [2022-12-14 16:18:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 16:18:09,119 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 [2022-12-14 16:18:09,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:09,126 INFO L225 Difference]: With dead ends: 3727 [2022-12-14 16:18:09,126 INFO L226 Difference]: Without dead ends: 1966 [2022-12-14 16:18:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-14 16:18:09,130 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 25 mSDsluCounter, 21792 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24233 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:09,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24233 Invalid, 3593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-12-14 16:18:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-12-14 16:18:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1942. [2022-12-14 16:18:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1167 states have (on average 1.286203941730934) internal successors, (1501), 1226 states have internal predecessors, (1501), 638 states have call successors, (638), 130 states have call predecessors, (638), 129 states have return successors, (636), 619 states have call predecessors, (636), 636 states have call successors, (636) [2022-12-14 16:18:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2775 transitions. [2022-12-14 16:18:09,336 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2775 transitions. Word has length 153 [2022-12-14 16:18:09,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:09,336 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2775 transitions. [2022-12-14 16:18:09,336 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) [2022-12-14 16:18:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2775 transitions. [2022-12-14 16:18:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 16:18:09,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:09,338 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] [2022-12-14 16:18:09,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 16:18:09,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 16:18:09,539 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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)] === [2022-12-14 16:18:09,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1587054356, now seen corresponding path program 1 times [2022-12-14 16:18:09,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:09,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583169277] [2022-12-14 16:18:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:09,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:18:09,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:09,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583169277] [2022-12-14 16:18:09,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583169277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:09,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:09,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:18:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008983291] [2022-12-14 16:18:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:09,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:18:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:18:09,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:18:09,796 INFO L87 Difference]: Start difference. First operand 1942 states and 2775 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) [2022-12-14 16:18:12,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:12,758 INFO L93 Difference]: Finished difference Result 1942 states and 2775 transitions. [2022-12-14 16:18:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:18:12,759 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 [2022-12-14 16:18:12,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:12,764 INFO L225 Difference]: With dead ends: 1942 [2022-12-14 16:18:12,764 INFO L226 Difference]: Without dead ends: 1940 [2022-12-14 16:18:12,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:18:12,765 INFO L413 NwaCegarLoop]: 2435 mSDtfsCounter, 2723 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:12,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 4870 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:18:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-12-14 16:18:13,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2022-12-14 16:18:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1166 states have (on average 1.2855917667238421) internal successors, (1499), 1224 states have internal predecessors, (1499), 638 states have call successors, (638), 130 states have call predecessors, (638), 129 states have return successors, (636), 619 states have call predecessors, (636), 636 states have call successors, (636) [2022-12-14 16:18:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2773 transitions. [2022-12-14 16:18:13,026 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2773 transitions. Word has length 135 [2022-12-14 16:18:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:13,027 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 2773 transitions. [2022-12-14 16:18:13,027 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) [2022-12-14 16:18:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2773 transitions. [2022-12-14 16:18:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-14 16:18:13,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:13,031 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:18:13,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 16:18:13,031 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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)] === [2022-12-14 16:18:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1037630570, now seen corresponding path program 1 times [2022-12-14 16:18:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618175310] [2022-12-14 16:18:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:13,105 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:18:13,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609347538] [2022-12-14 16:18:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:13,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:18:13,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:18:13,106 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:18:13,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 16:18:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:14,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 4249 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 16:18:14,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:18:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-14 16:18:14,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:18:14,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:14,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618175310] [2022-12-14 16:18:14,049 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:18:14,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609347538] [2022-12-14 16:18:14,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609347538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:14,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:14,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 16:18:14,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269868503] [2022-12-14 16:18:14,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:14,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 16:18:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 16:18:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:18:14,051 INFO L87 Difference]: Start difference. First operand 1940 states and 2773 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 16:18:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:23,324 INFO L93 Difference]: Finished difference Result 4512 states and 6599 transitions. [2022-12-14 16:18:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 16:18:23,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 165 [2022-12-14 16:18:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:23,331 INFO L225 Difference]: With dead ends: 4512 [2022-12-14 16:18:23,331 INFO L226 Difference]: Without dead ends: 2718 [2022-12-14 16:18:23,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 16:18:23,335 INFO L413 NwaCegarLoop]: 2804 mSDtfsCounter, 1069 mSDsluCounter, 13451 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 16255 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:23,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 16255 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 16:18:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2022-12-14 16:18:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1942. [2022-12-14 16:18:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1168 states have (on average 1.2851027397260273) internal successors, (1501), 1226 states have internal predecessors, (1501), 638 states have call successors, (638), 130 states have call predecessors, (638), 129 states have return successors, (636), 619 states have call predecessors, (636), 636 states have call successors, (636) [2022-12-14 16:18:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2775 transitions. [2022-12-14 16:18:23,592 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2775 transitions. Word has length 165 [2022-12-14 16:18:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:23,592 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2775 transitions. [2022-12-14 16:18:23,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 16:18:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2775 transitions. [2022-12-14 16:18:23,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-14 16:18:23,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:23,594 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] [2022-12-14 16:18:23,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:18:23,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-14 16:18:23,795 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)] === [2022-12-14 16:18:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:23,795 INFO L85 PathProgramCache]: Analyzing trace with hash 224530990, now seen corresponding path program 1 times [2022-12-14 16:18:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:23,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193962154] [2022-12-14 16:18:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:23,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:18:24,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:24,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193962154] [2022-12-14 16:18:24,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193962154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:24,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:24,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:18:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466040445] [2022-12-14 16:18:24,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:24,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:18:24,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:18:24,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:18:24,024 INFO L87 Difference]: Start difference. First operand 1942 states and 2775 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) [2022-12-14 16:18:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:27,139 INFO L93 Difference]: Finished difference Result 1942 states and 2775 transitions. [2022-12-14 16:18:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:18:27,139 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 [2022-12-14 16:18:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:27,145 INFO L225 Difference]: With dead ends: 1942 [2022-12-14 16:18:27,145 INFO L226 Difference]: Without dead ends: 1940 [2022-12-14 16:18:27,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:18:27,146 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 2720 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:27,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 4866 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 16:18:27,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-12-14 16:18:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2022-12-14 16:18:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1167 states have (on average 1.284490145672665) internal successors, (1499), 1224 states have internal predecessors, (1499), 638 states have call successors, (638), 130 states have call predecessors, (638), 129 states have return successors, (636), 619 states have call predecessors, (636), 636 states have call successors, (636) [2022-12-14 16:18:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2773 transitions. [2022-12-14 16:18:27,387 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2773 transitions. Word has length 140 [2022-12-14 16:18:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:27,387 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 2773 transitions. [2022-12-14 16:18:27,387 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) [2022-12-14 16:18:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2773 transitions. [2022-12-14 16:18:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-14 16:18:27,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:27,389 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] [2022-12-14 16:18:27,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 16:18:27,389 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)] === [2022-12-14 16:18:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:27,389 INFO L85 PathProgramCache]: Analyzing trace with hash -892263946, now seen corresponding path program 1 times [2022-12-14 16:18:27,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:27,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951475716] [2022-12-14 16:18:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:27,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 16:18:27,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:27,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951475716] [2022-12-14 16:18:27,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951475716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:27,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:27,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:18:27,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338164714] [2022-12-14 16:18:27,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:27,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:18:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:27,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:18:27,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:18:27,692 INFO L87 Difference]: Start difference. First operand 1940 states and 2773 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) [2022-12-14 16:18:30,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:30,302 INFO L93 Difference]: Finished difference Result 1940 states and 2773 transitions. [2022-12-14 16:18:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:18:30,302 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 [2022-12-14 16:18:30,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:30,306 INFO L225 Difference]: With dead ends: 1940 [2022-12-14 16:18:30,306 INFO L226 Difference]: Without dead ends: 1804 [2022-12-14 16:18:30,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:18:30,307 INFO L413 NwaCegarLoop]: 2432 mSDtfsCounter, 2717 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:30,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 4864 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 16:18:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2022-12-14 16:18:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2022-12-14 16:18:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1097 states have (on average 1.2989972652689152) internal successors, (1425), 1152 states have internal predecessors, (1425), 592 states have call successors, (592), 110 states have call predecessors, (592), 110 states have return successors, (592), 575 states have call predecessors, (592), 592 states have call successors, (592) [2022-12-14 16:18:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2609 transitions. [2022-12-14 16:18:30,523 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2609 transitions. Word has length 145 [2022-12-14 16:18:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:30,523 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2609 transitions. [2022-12-14 16:18:30,523 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) [2022-12-14 16:18:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2609 transitions. [2022-12-14 16:18:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 16:18:30,525 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:30,525 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:18:30,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 16:18:30,525 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)] === [2022-12-14 16:18:30,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:30,525 INFO L85 PathProgramCache]: Analyzing trace with hash -201731729, now seen corresponding path program 1 times [2022-12-14 16:18:30,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:30,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889082238] [2022-12-14 16:18:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:30,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:30,589 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:18:30,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543631591] [2022-12-14 16:18:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:30,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:18:30,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:18:30,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:18:30,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:18:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:31,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 4286 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 16:18:31,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:18:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-12-14 16:18:31,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:18:31,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:31,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889082238] [2022-12-14 16:18:31,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:18:31,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543631591] [2022-12-14 16:18:31,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543631591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:31,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:31,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 16:18:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364146451] [2022-12-14 16:18:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:31,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 16:18:31,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 16:18:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-14 16:18:31,514 INFO L87 Difference]: Start difference. First operand 1804 states and 2609 transitions. Second operand has 12 states, 9 states have (on average 8.666666666666666) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-12-14 16:18:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:44,628 INFO L93 Difference]: Finished difference Result 3451 states and 4994 transitions. [2022-12-14 16:18:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 16:18:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.666666666666666) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 181 [2022-12-14 16:18:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:44,633 INFO L225 Difference]: With dead ends: 3451 [2022-12-14 16:18:44,633 INFO L226 Difference]: Without dead ends: 1794 [2022-12-14 16:18:44,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-12-14 16:18:44,637 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 21 mSDsluCounter, 22812 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s 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, 12.6s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:44,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 25101 Invalid, 3584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2022-12-14 16:18:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-12-14 16:18:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1794. [2022-12-14 16:18:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1091 states have (on average 1.2988084326306142) internal successors, (1417), 1146 states have internal predecessors, (1417), 589 states have call successors, (589), 109 states have call predecessors, (589), 109 states have return successors, (589), 572 states have call predecessors, (589), 589 states have call successors, (589) [2022-12-14 16:18:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2595 transitions. [2022-12-14 16:18:44,863 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2595 transitions. Word has length 181 [2022-12-14 16:18:44,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:44,863 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 2595 transitions. [2022-12-14 16:18:44,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.666666666666666) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-12-14 16:18:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2595 transitions. [2022-12-14 16:18:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-14 16:18:44,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:44,864 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 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] [2022-12-14 16:18:44,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 16:18:45,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:18:45,065 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)] === [2022-12-14 16:18:45,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:45,065 INFO L85 PathProgramCache]: Analyzing trace with hash -697086587, now seen corresponding path program 1 times [2022-12-14 16:18:45,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:45,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795263451] [2022-12-14 16:18:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:45,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:18:45,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577462097] [2022-12-14 16:18:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:45,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:18:45,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:18:45,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:18:45,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 16:18:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:46,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 4384 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-14 16:18:46,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:18:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-12-14 16:18:46,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:18:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-12-14 16:18:46,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:46,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795263451] [2022-12-14 16:18:46,688 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:18:46,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577462097] [2022-12-14 16:18:46,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577462097] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 16:18:46,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 16:18:46,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-12-14 16:18:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403120417] [2022-12-14 16:18:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:46,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 16:18:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 16:18:46,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-12-14 16:18:46,690 INFO L87 Difference]: Start difference. First operand 1794 states and 2595 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 16:18:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:52,342 INFO L93 Difference]: Finished difference Result 1849 states and 2648 transitions. [2022-12-14 16:18:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:18:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 196 [2022-12-14 16:18:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:52,346 INFO L225 Difference]: With dead ends: 1849 [2022-12-14 16:18:52,346 INFO L226 Difference]: Without dead ends: 1847 [2022-12-14 16:18:52,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2022-12-14 16:18:52,347 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 5188 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 2276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5190 SdHoareTripleChecker+Valid, 7197 SdHoareTripleChecker+Invalid, 3254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2276 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:52,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5190 Valid, 7197 Invalid, 3254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2276 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 16:18:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-12-14 16:18:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1845. [2022-12-14 16:18:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1121 states have (on average 1.2925958965209634) internal successors, (1449), 1176 states have internal predecessors, (1449), 598 states have call successors, (598), 121 states have call predecessors, (598), 121 states have return successors, (598), 581 states have call predecessors, (598), 598 states have call successors, (598) [2022-12-14 16:18:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2645 transitions. [2022-12-14 16:18:52,585 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2645 transitions. Word has length 196 [2022-12-14 16:18:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:52,585 INFO L495 AbstractCegarLoop]: Abstraction has 1845 states and 2645 transitions. [2022-12-14 16:18:52,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 16:18:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2645 transitions. [2022-12-14 16:18:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-14 16:18:52,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:52,587 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:18:52,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 16:18:52,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-14 16:18:52,788 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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)] === [2022-12-14 16:18:52,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1060580963, now seen corresponding path program 1 times [2022-12-14 16:18:52,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:52,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105715521] [2022-12-14 16:18:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-14 16:18:53,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:53,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105715521] [2022-12-14 16:18:53,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105715521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:53,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:53,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:18:53,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528724443] [2022-12-14 16:18:53,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:53,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:18:53,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:53,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:18:53,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:18:53,262 INFO L87 Difference]: Start difference. First operand 1845 states and 2645 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-12-14 16:18:57,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:18:57,600 INFO L93 Difference]: Finished difference Result 1845 states and 2645 transitions. [2022-12-14 16:18:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 16:18:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 201 [2022-12-14 16:18:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:18:57,604 INFO L225 Difference]: With dead ends: 1845 [2022-12-14 16:18:57,604 INFO L226 Difference]: Without dead ends: 1843 [2022-12-14 16:18:57,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:18:57,605 INFO L413 NwaCegarLoop]: 2291 mSDtfsCounter, 45 mSDsluCounter, 6828 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:18:57,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 9119 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 16:18:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2022-12-14 16:18:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2022-12-14 16:18:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1120 states have (on average 1.2919642857142857) internal successors, (1447), 1174 states have internal predecessors, (1447), 598 states have call successors, (598), 121 states have call predecessors, (598), 121 states have return successors, (598), 581 states have call predecessors, (598), 598 states have call successors, (598) [2022-12-14 16:18:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2643 transitions. [2022-12-14 16:18:57,852 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2643 transitions. Word has length 201 [2022-12-14 16:18:57,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:18:57,852 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2643 transitions. [2022-12-14 16:18:57,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-12-14 16:18:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2643 transitions. [2022-12-14 16:18:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-14 16:18:57,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:18:57,856 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:18:57,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 16:18:57,856 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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)] === [2022-12-14 16:18:57,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:18:57,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1526828861, now seen corresponding path program 1 times [2022-12-14 16:18:57,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:18:57,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531565912] [2022-12-14 16:18:57,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:18:57,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:18:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:18:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2022-12-14 16:18:58,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:18:58,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531565912] [2022-12-14 16:18:58,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531565912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:18:58,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:18:58,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 16:18:58,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054855101] [2022-12-14 16:18:58,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:18:58,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 16:18:58,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:18:58,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 16:18:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 16:18:58,575 INFO L87 Difference]: Start difference. First operand 1843 states and 2643 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 16:19:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:19:06,370 INFO L93 Difference]: Finished difference Result 3396 states and 4879 transitions. [2022-12-14 16:19:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 16:19:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 3 states have call successors, (33) Word has length 226 [2022-12-14 16:19:06,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:19:06,376 INFO L225 Difference]: With dead ends: 3396 [2022-12-14 16:19:06,376 INFO L226 Difference]: Without dead ends: 1857 [2022-12-14 16:19:06,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 16:19:06,380 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 5 mSDsluCounter, 13713 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16006 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 16:19:06,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16006 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 16:19:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2022-12-14 16:19:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1851. [2022-12-14 16:19:06,755 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, (624), 584 states have call predecessors, (624), 599 states have call successors, (624) [2022-12-14 16:19:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2675 transitions. [2022-12-14 16:19:06,762 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2675 transitions. Word has length 226 [2022-12-14 16:19:06,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:19:06,762 INFO L495 AbstractCegarLoop]: Abstraction has 1851 states and 2675 transitions. [2022-12-14 16:19:06,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 16:19:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2675 transitions. [2022-12-14 16:19:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-14 16:19:06,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:19:06,766 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 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] [2022-12-14 16:19:06,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 16:19:06,766 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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)] === [2022-12-14 16:19:06,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:19:06,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1309790660, now seen corresponding path program 1 times [2022-12-14 16:19:06,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:19:06,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703612268] [2022-12-14 16:19:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:06,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:19:06,880 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:19:06,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929818151] [2022-12-14 16:19:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:06,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:19:06,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:19:06,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:19:06,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 16:19:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:19:07,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 4496 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 16:19:07,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:19:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-12-14 16:19:07,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:19:07,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:19:07,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703612268] [2022-12-14 16:19:07,986 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:19:07,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929818151] [2022-12-14 16:19:07,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929818151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:19:07,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:19:07,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:19:07,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724419201] [2022-12-14 16:19:07,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:19:07,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:19:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:19:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:19:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:19:07,988 INFO L87 Difference]: Start difference. First operand 1851 states and 2675 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 16:19:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:19:12,131 INFO L93 Difference]: Finished difference Result 1853 states and 2676 transitions. [2022-12-14 16:19:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 16:19:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 212 [2022-12-14 16:19:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:19:12,135 INFO L225 Difference]: With dead ends: 1853 [2022-12-14 16:19:12,135 INFO L226 Difference]: Without dead ends: 1851 [2022-12-14 16:19:12,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:19:12,136 INFO L413 NwaCegarLoop]: 2306 mSDtfsCounter, 91 mSDsluCounter, 6862 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 9168 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 16:19:12,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 9168 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 16:19:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-12-14 16:19:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1851. [2022-12-14 16:19:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1125 states have (on average 1.2897777777777777) internal successors, (1451), 1179 states have internal predecessors, (1451), 599 states have call successors, (599), 121 states have call predecessors, (599), 123 states have return successors, (624), 584 states have call predecessors, (624), 599 states have call successors, (624) [2022-12-14 16:19:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2674 transitions. [2022-12-14 16:19:12,373 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2674 transitions. Word has length 212 [2022-12-14 16:19:12,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:19:12,374 INFO L495 AbstractCegarLoop]: Abstraction has 1851 states and 2674 transitions. [2022-12-14 16:19:12,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 16:19:12,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2674 transitions. [2022-12-14 16:19:12,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-12-14 16:19:12,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:19:12,376 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] [2022-12-14 16:19:12,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 16:19:12,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:19:12,578 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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)] === [2022-12-14 16:19:12,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:19:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1779337160, now seen corresponding path program 1 times [2022-12-14 16:19:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:19:12,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725837998] [2022-12-14 16:19:12,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:19:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:19:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2022-12-14 16:19:13,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:19:13,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725837998] [2022-12-14 16:19:13,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725837998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:19:13,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:19:13,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 16:19:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527494648] [2022-12-14 16:19:13,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:19:13,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 16:19:13,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:19:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 16:19:13,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 16:19:13,014 INFO L87 Difference]: Start difference. First operand 1851 states and 2674 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 16:19:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:19:20,131 INFO L93 Difference]: Finished difference Result 3394 states and 4899 transitions. [2022-12-14 16:19:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:19:20,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 239 [2022-12-14 16:19:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:19:20,137 INFO L225 Difference]: With dead ends: 3394 [2022-12-14 16:19:20,137 INFO L226 Difference]: Without dead ends: 1847 [2022-12-14 16:19:20,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 16:19:20,140 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2516 mSDsluCounter, 5673 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 7959 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:19:20,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 7959 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 16:19:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-12-14 16:19:20,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1847. [2022-12-14 16:19:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1122 states have (on average 1.2887700534759359) internal successors, (1446), 1175 states have internal predecessors, (1446), 599 states have call successors, (599), 121 states have call predecessors, (599), 123 states have return successors, (624), 584 states have call predecessors, (624), 599 states have call successors, (624) [2022-12-14 16:19:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2669 transitions. [2022-12-14 16:19:20,378 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2669 transitions. Word has length 239 [2022-12-14 16:19:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:19:20,378 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2669 transitions. [2022-12-14 16:19:20,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 16:19:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2669 transitions. [2022-12-14 16:19:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 16:19:20,380 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:19:20,380 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, 1] [2022-12-14 16:19:20,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 16:19:20,380 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_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)] === [2022-12-14 16:19:20,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:19:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash -674752836, now seen corresponding path program 1 times [2022-12-14 16:19:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:19:20,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382083806] [2022-12-14 16:19:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:20,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:19:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:19:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-12-14 16:19:20,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:19:20,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382083806] [2022-12-14 16:19:20,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382083806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:19:20,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:19:20,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 16:19:20,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192465487] [2022-12-14 16:19:20,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:19:20,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 16:19:20,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:19:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 16:19:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 16:19:20,694 INFO L87 Difference]: Start difference. First operand 1847 states and 2669 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 16:19:24,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:19:24,116 INFO L93 Difference]: Finished difference Result 1847 states and 2669 transitions. [2022-12-14 16:19:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 16:19:24,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 240 [2022-12-14 16:19:24,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:19:24,121 INFO L225 Difference]: With dead ends: 1847 [2022-12-14 16:19:24,121 INFO L226 Difference]: Without dead ends: 1845 [2022-12-14 16:19:24,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:19:24,122 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 2509 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:19:24,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 4566 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 16:19:24,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2022-12-14 16:19:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1845. [2022-12-14 16:19:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1121 states have (on average 1.2881355932203389) internal successors, (1444), 1173 states have internal predecessors, (1444), 599 states have call successors, (599), 121 states have call predecessors, (599), 123 states have return successors, (624), 584 states have call predecessors, (624), 599 states have call successors, (624) [2022-12-14 16:19:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2667 transitions. [2022-12-14 16:19:24,356 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2667 transitions. Word has length 240 [2022-12-14 16:19:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:19:24,357 INFO L495 AbstractCegarLoop]: Abstraction has 1845 states and 2667 transitions. [2022-12-14 16:19:24,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 16:19:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2667 transitions. [2022-12-14 16:19:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-12-14 16:19:24,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:19:24,360 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:19:24,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 16:19:24,360 INFO L420 AbstractCegarLoop]: === Iteration 38 === 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)] === [2022-12-14 16:19:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:19:24,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1650256817, now seen corresponding path program 1 times [2022-12-14 16:19:24,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:19:24,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890217715] [2022-12-14 16:19:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:19:24,439 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:19:24,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254434475] [2022-12-14 16:19:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:24,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:19:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:19:24,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:19:24,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 16:19:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:19:25,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 4802 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 16:19:25,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:19:25,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-12-14 16:19:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:19:25,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:19:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:19:25,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 16:19:25,635 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 16:19:25,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-14 16:19:25,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 16:19:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-12-14 16:19:25,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:19:25,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:19:25,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890217715] [2022-12-14 16:19:25,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:19:25,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254434475] [2022-12-14 16:19:25,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254434475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:19:25,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:19:25,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 16:19:25,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488828598] [2022-12-14 16:19:25,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:19:25,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 16:19:25,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:19:25,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 16:19:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 16:19:25,701 INFO L87 Difference]: Start difference. First operand 1845 states and 2667 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 6 states have internal predecessors, (115), 5 states have call successors, (45), 5 states have call predecessors, (45), 3 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2022-12-14 16:19:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:19:41,469 INFO L93 Difference]: Finished difference Result 3827 states and 5648 transitions. [2022-12-14 16:19:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 16:19:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 6 states have internal predecessors, (115), 5 states have call successors, (45), 5 states have call predecessors, (45), 3 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Word has length 264 [2022-12-14 16:19:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:19:41,475 INFO L225 Difference]: With dead ends: 3827 [2022-12-14 16:19:41,475 INFO L226 Difference]: Without dead ends: 2150 [2022-12-14 16:19:41,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 16:19:41,479 INFO L413 NwaCegarLoop]: 2174 mSDtfsCounter, 584 mSDsluCounter, 9377 mSDsCounter, 0 mSdLazyCounter, 6789 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 11551 SdHoareTripleChecker+Invalid, 7451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 6789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:19:41,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 11551 Invalid, 7451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [662 Valid, 6789 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-12-14 16:19:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2022-12-14 16:19:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2016. [2022-12-14 16:19:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1230 states have (on average 1.2975609756097561) internal successors, (1596), 1292 states have internal predecessors, (1596), 657 states have call successors, (657), 123 states have call predecessors, (657), 127 states have return successors, (686), 640 states have call predecessors, (686), 657 states have call successors, (686) [2022-12-14 16:19:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2939 transitions. [2022-12-14 16:19:41,743 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2939 transitions. Word has length 264 [2022-12-14 16:19:41,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:19:41,744 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2939 transitions. [2022-12-14 16:19:41,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 6 states have internal predecessors, (115), 5 states have call successors, (45), 5 states have call predecessors, (45), 3 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2022-12-14 16:19:41,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2939 transitions. [2022-12-14 16:19:41,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-12-14 16:19:41,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:19:41,747 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:19:41,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 16:19:41,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-14 16:19:41,949 INFO L420 AbstractCegarLoop]: === Iteration 39 === 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)] === [2022-12-14 16:19:41,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:19:41,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1909122727, now seen corresponding path program 1 times [2022-12-14 16:19:41,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:19:41,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042019782] [2022-12-14 16:19:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:41,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:19:42,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:19:42,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227279630] [2022-12-14 16:19:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:19:42,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:19:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:19:42,057 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:19:42,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_144530bb-f9c3-4bba-8d83-18eec9743528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 16:19:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:19:43,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 4851 conjuncts, 61 conjunts are in the unsatisfiable core [2022-12-14 16:19:43,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:19:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-12-14 16:19:43,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:19:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-12-14 16:19:44,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:19:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042019782] [2022-12-14 16:19:44,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:19:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227279630] [2022-12-14 16:19:44,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227279630] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:19:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [291840097] [2022-12-14 16:19:44,140 INFO L159 IcfgInterpreter]: Started Sifa with 188 locations of interest [2022-12-14 16:19:44,140 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:19:44,142 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:19:44,146 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:19:44,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:21:26,129 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 3813 for LOIs [2022-12-14 16:22:31,953 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 3807 for LOIs [2022-12-14 16:22:38,419 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 3807 for LOIs [2022-12-14 16:22:50,130 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:23:59,378 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 3802 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:25:03,883 WARN L233 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 3807 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:26:15,378 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 3809 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:27:22,782 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification that was a NOOP. DAG size: 3811 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:28:33,392 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 3807 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)