./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI --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 c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- 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-5e519f3 [2022-11-03 02:33:39,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:33:39,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:33:39,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:33:39,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:33:39,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:33:39,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:33:39,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:33:39,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:33:39,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:33:39,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:33:39,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:33:39,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:33:39,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:33:39,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:33:39,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:33:39,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:33:39,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:33:39,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:33:39,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:33:39,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:33:39,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:33:39,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:33:39,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:33:39,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:33:39,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:33:39,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:33:39,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:33:39,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:33:39,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:33:39,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:33:39,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:33:39,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:33:39,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:33:39,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:33:39,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:33:39,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:33:39,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:33:39,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:33:39,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:33:39,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:33:39,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:33:39,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:33:39,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:33:39,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:33:39,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:33:39,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:33:39,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:33:39,539 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:33:39,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:33:39,539 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:33:39,540 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:33:39,540 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:33:39,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:33:39,541 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:33:39,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:33:39,541 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:33:39,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:33:39,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:33:39,542 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:33:39,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:33:39,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:33:39,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:33:39,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:33:39,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:33:39,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:33:39,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:33:39,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:33:39,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:33:39,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:33:39,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:33:39,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:33:39,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:33:39,547 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:33:39,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:33:39,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:33:39,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:33:39,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:33:39,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:33:39,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:33:39,549 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_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2022-11-03 02:33:39,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:33:39,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:33:39,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:33:39,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:33:39,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:33:39,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-03 02:33:39,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/data/b7d517732/accfc24b953b488190cf9cae449f54a3/FLAG8244b34d7 [2022-11-03 02:33:40,940 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:33:40,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-03 02:33:40,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/data/b7d517732/accfc24b953b488190cf9cae449f54a3/FLAG8244b34d7 [2022-11-03 02:33:41,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/data/b7d517732/accfc24b953b488190cf9cae449f54a3 [2022-11-03 02:33:41,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:33:41,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:33:41,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:33:41,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:33:41,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:33:41,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2061bab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41, skipping insertion in model container [2022-11-03 02:33:41,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:33:41,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:33:44,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2022-11-03 02:33:44,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2022-11-03 02:33:44,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2022-11-03 02:33:44,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2022-11-03 02:33:44,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:33:45,038 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:33:45,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2022-11-03 02:33:45,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2022-11-03 02:33:45,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2022-11-03 02:33:45,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2022-11-03 02:33:45,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:33:45,776 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:33:45,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45 WrapperNode [2022-11-03 02:33:45,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:33:45,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:33:45,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:33:45,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:33:45,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:45,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,111 INFO L138 Inliner]: procedures = 490, calls = 2655, calls flagged for inlining = 292, calls inlined = 259, statements flattened = 5839 [2022-11-03 02:33:46,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:33:46,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:33:46,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:33:46,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:33:46,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:33:46,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:33:46,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:33:46,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:33:46,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (1/1) ... [2022-11-03 02:33:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:33:46,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:46,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:33:46,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cf3264f-ee11-499d-8485-954442306550/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:33:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:33:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:33:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:33:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:33:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 02:33:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 02:33:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:33:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:33:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:33:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:33:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:33:46,676 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:33:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2022-11-03 02:33:46,676 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2022-11-03 02:33:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:33:46,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:33:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:33:46,677 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:33:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:33:46,677 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:33:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:33:46,677 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:33:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 02:33:46,678 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 02:33:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2022-11-03 02:33:46,678 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2022-11-03 02:33:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-03 02:33:46,678 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-03 02:33:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:33:46,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:33:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2022-11-03 02:33:46,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2022-11-03 02:33:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:33:46,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:33:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:33:46,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:33:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:33:46,680 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:33:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 02:33:46,681 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 02:33:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:33:46,682 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:33:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:33:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:33:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:33:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:33:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:33:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:33:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:33:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:33:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:33:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2022-11-03 02:33:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2022-11-03 02:33:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:33:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:33:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:33:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:33:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 02:33:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 02:33:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2022-11-03 02:33:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2022-11-03 02:33:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:33:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:33:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:33:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:33:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:33:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2022-11-03 02:33:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2022-11-03 02:33:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:33:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:33:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:33:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:33:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:33:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:33:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:33:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2022-11-03 02:33:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2022-11-03 02:33:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-03 02:33:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-03 02:33:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:33:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:33:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:33:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:33:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2022-11-03 02:33:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2022-11-03 02:33:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2022-11-03 02:33:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2022-11-03 02:33:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:33:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:33:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:33:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:33:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:33:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:33:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:33:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:33:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:33:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:33:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-03 02:33:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-03 02:33:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:33:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:33:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:33:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:33:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:33:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:33:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 02:33:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 02:33:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:33:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:33:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:33:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:33:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2022-11-03 02:33:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2022-11-03 02:33:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:33:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:33:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2022-11-03 02:33:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2022-11-03 02:33:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-03 02:33:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-03 02:33:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:33:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:33:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-03 02:33:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-03 02:33:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:33:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:33:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:33:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:33:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-03 02:33:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-03 02:33:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:33:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:33:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2022-11-03 02:33:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2022-11-03 02:33:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2022-11-03 02:33:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2022-11-03 02:33:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-03 02:33:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-03 02:33:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:33:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:33:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 02:33:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 02:33:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:33:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:33:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:33:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:33:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:33:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:33:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2022-11-03 02:33:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2022-11-03 02:33:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:33:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:33:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:33:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:33:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2022-11-03 02:33:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2022-11-03 02:33:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2022-11-03 02:33:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2022-11-03 02:33:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:33:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:33:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2022-11-03 02:33:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2022-11-03 02:33:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 02:33:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 02:33:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:33:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:33:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2022-11-03 02:33:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2022-11-03 02:33:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2022-11-03 02:33:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2022-11-03 02:33:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:33:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:33:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:33:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:33:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:33:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:33:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:33:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:33:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2022-11-03 02:33:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2022-11-03 02:33:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-03 02:33:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-03 02:33:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:33:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2022-11-03 02:33:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2022-11-03 02:33:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2022-11-03 02:33:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2022-11-03 02:33:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:33:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:33:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 02:33:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 02:33:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2022-11-03 02:33:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2022-11-03 02:33:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2022-11-03 02:33:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2022-11-03 02:33:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:33:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:33:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:33:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:33:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:33:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:33:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:33:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:33:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:33:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:33:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:33:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:33:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:33:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:33:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:33:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:33:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:33:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:33:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2022-11-03 02:33:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2022-11-03 02:33:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2022-11-03 02:33:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2022-11-03 02:33:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:33:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:33:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2022-11-03 02:33:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2022-11-03 02:33:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:33:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:33:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:33:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:33:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:33:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:33:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:33:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-03 02:33:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-03 02:33:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:33:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:33:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_task_lock_of_rhine_private [2022-11-03 02:33:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_task_lock_of_rhine_private [2022-11-03 02:33:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2022-11-03 02:33:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2022-11-03 02:33:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2022-11-03 02:33:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2022-11-03 02:33:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2022-11-03 02:33:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2022-11-03 02:33:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2022-11-03 02:33:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2022-11-03 02:33:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:33:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:33:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:33:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:33:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:33:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:33:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:33:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:33:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2022-11-03 02:33:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2022-11-03 02:33:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2022-11-03 02:33:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2022-11-03 02:33:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:33:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:33:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:33:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:33:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:33:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2022-11-03 02:33:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2022-11-03 02:33:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2022-11-03 02:33:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2022-11-03 02:33:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:33:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:33:47,707 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:33:47,711 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:33:47,890 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:43:08,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:43:09,097 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:43:14,584 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:43:14,584 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:43:14,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:14 BoogieIcfgContainer [2022-11-03 02:43:14,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:43:14,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:43:14,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:43:14,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:43:14,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:33:41" (1/3) ... [2022-11-03 02:43:14,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4323bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:14, skipping insertion in model container [2022-11-03 02:43:14,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:45" (2/3) ... [2022-11-03 02:43:14,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4323bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:14, skipping insertion in model container [2022-11-03 02:43:14,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:14" (3/3) ... [2022-11-03 02:43:14,605 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-03 02:43:14,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:43:14,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:43:14,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:43:14,767 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;@4068bf25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:43:14,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:43:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 1653 states, 946 states have (on average 1.3128964059196617) internal successors, (1242), 995 states have internal predecessors, (1242), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) [2022-11-03 02:43:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-03 02:43:14,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:14,818 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 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] [2022-11-03 02:43:14,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:43:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash 954676988, now seen corresponding path program 1 times [2022-11-03 02:43:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:14,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842369778] [2022-11-03 02:43:14,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2022-11-03 02:43:17,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:17,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842369778] [2022-11-03 02:43:17,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842369778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:17,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:17,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984058675] [2022-11-03 02:43:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:17,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:17,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:17,933 INFO L87 Difference]: Start difference. First operand has 1653 states, 946 states have (on average 1.3128964059196617) internal successors, (1242), 995 states have internal predecessors, (1242), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:43:20,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:26,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:26,716 INFO L93 Difference]: Finished difference Result 4816 states and 7130 transitions. [2022-11-03 02:43:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:26,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2022-11-03 02:43:26,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:26,765 INFO L225 Difference]: With dead ends: 4816 [2022-11-03 02:43:26,765 INFO L226 Difference]: Without dead ends: 3179 [2022-11-03 02:43:26,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:26,783 INFO L413 NwaCegarLoop]: 2570 mSDtfsCounter, 2269 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:26,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 4566 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 716 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 02:43:26,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2022-11-03 02:43:27,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3175. [2022-11-03 02:43:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 1826 states have (on average 1.3061336254107339) internal successors, (2385), 1921 states have internal predecessors, (2385), 1104 states have call successors, (1104), 243 states have call predecessors, (1104), 242 states have return successors, (1100), 1074 states have call predecessors, (1100), 1100 states have call successors, (1100) [2022-11-03 02:43:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4589 transitions. [2022-11-03 02:43:27,110 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4589 transitions. Word has length 164 [2022-11-03 02:43:27,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:27,114 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4589 transitions. [2022-11-03 02:43:27,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:43:27,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4589 transitions. [2022-11-03 02:43:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-03 02:43:27,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:27,132 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:27,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:43:27,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:43:27,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:27,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1365411271, now seen corresponding path program 1 times [2022-11-03 02:43:27,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:27,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790900666] [2022-11-03 02:43:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:27,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:43:29,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:29,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790900666] [2022-11-03 02:43:29,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790900666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:29,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:29,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:29,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172170032] [2022-11-03 02:43:29,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:29,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:29,353 INFO L87 Difference]: Start difference. First operand 3175 states and 4589 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:43:31,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:37,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:37,706 INFO L93 Difference]: Finished difference Result 9107 states and 13133 transitions. [2022-11-03 02:43:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:37,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2022-11-03 02:43:37,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:37,749 INFO L225 Difference]: With dead ends: 9107 [2022-11-03 02:43:37,749 INFO L226 Difference]: Without dead ends: 5961 [2022-11-03 02:43:37,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:37,766 INFO L413 NwaCegarLoop]: 2539 mSDtfsCounter, 2001 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:37,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 4496 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 783 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 02:43:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2022-11-03 02:43:38,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5940. [2022-11-03 02:43:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 3403 states have (on average 1.2918013517484572) internal successors, (4396), 3577 states have internal predecessors, (4396), 2059 states have call successors, (2059), 476 states have call predecessors, (2059), 475 states have return successors, (2055), 2004 states have call predecessors, (2055), 2055 states have call successors, (2055) [2022-11-03 02:43:38,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 8510 transitions. [2022-11-03 02:43:38,116 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 8510 transitions. Word has length 165 [2022-11-03 02:43:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:38,119 INFO L495 AbstractCegarLoop]: Abstraction has 5940 states and 8510 transitions. [2022-11-03 02:43:38,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:43:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 8510 transitions. [2022-11-03 02:43:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-03 02:43:38,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:38,123 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:38,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:43:38,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:43:38,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2131269995, now seen corresponding path program 1 times [2022-11-03 02:43:38,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:38,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899252487] [2022-11-03 02:43:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:38,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:43:39,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:39,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899252487] [2022-11-03 02:43:39,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899252487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:39,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:39,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:39,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101542561] [2022-11-03 02:43:39,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:39,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:39,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:39,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:39,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:39,790 INFO L87 Difference]: Start difference. First operand 5940 states and 8510 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:43:41,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:47,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:47,474 INFO L93 Difference]: Finished difference Result 16690 states and 23800 transitions. [2022-11-03 02:43:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 166 [2022-11-03 02:43:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:47,552 INFO L225 Difference]: With dead ends: 16690 [2022-11-03 02:43:47,552 INFO L226 Difference]: Without dead ends: 10779 [2022-11-03 02:43:47,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:47,584 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 1915 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:47,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1915 Valid, 4441 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 731 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 02:43:47,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2022-11-03 02:43:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 10754. [2022-11-03 02:43:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10754 states, 6127 states have (on average 1.2808878733474784) internal successors, (7848), 6457 states have internal predecessors, (7848), 3721 states have call successors, (3721), 908 states have call predecessors, (3721), 903 states have return successors, (3719), 3604 states have call predecessors, (3719), 3717 states have call successors, (3719) [2022-11-03 02:43:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10754 states to 10754 states and 15288 transitions. [2022-11-03 02:43:48,450 INFO L78 Accepts]: Start accepts. Automaton has 10754 states and 15288 transitions. Word has length 166 [2022-11-03 02:43:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:48,452 INFO L495 AbstractCegarLoop]: Abstraction has 10754 states and 15288 transitions. [2022-11-03 02:43:48,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:43:48,453 INFO L276 IsEmpty]: Start isEmpty. Operand 10754 states and 15288 transitions. [2022-11-03 02:43:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-03 02:43:48,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:48,456 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:48,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:43:48,457 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:43:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:48,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1289738322, now seen corresponding path program 1 times [2022-11-03 02:43:48,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:48,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536216793] [2022-11-03 02:43:48,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:48,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:43:50,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:50,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536216793] [2022-11-03 02:43:50,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536216793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:50,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:50,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:50,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542045447] [2022-11-03 02:43:50,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:50,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:50,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:50,234 INFO L87 Difference]: Start difference. First operand 10754 states and 15288 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:43:52,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:56,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:57,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:59,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:59,181 INFO L93 Difference]: Finished difference Result 22758 states and 32260 transitions. [2022-11-03 02:43:59,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:59,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 176 [2022-11-03 02:43:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:59,266 INFO L225 Difference]: With dead ends: 22758 [2022-11-03 02:43:59,266 INFO L226 Difference]: Without dead ends: 12033 [2022-11-03 02:43:59,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:59,338 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 1983 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 4722 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:59,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 4722 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 833 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 02:43:59,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12033 states. [2022-11-03 02:44:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12033 to 12010. [2022-11-03 02:44:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12010 states, 6863 states have (on average 1.2723298848899898) internal successors, (8732), 7232 states have internal predecessors, (8732), 4086 states have call successors, (4086), 1066 states have call predecessors, (4086), 1058 states have return successors, (4084), 3938 states have call predecessors, (4084), 4082 states have call successors, (4084) [2022-11-03 02:44:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12010 states to 12010 states and 16902 transitions. [2022-11-03 02:44:00,229 INFO L78 Accepts]: Start accepts. Automaton has 12010 states and 16902 transitions. Word has length 176 [2022-11-03 02:44:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:00,230 INFO L495 AbstractCegarLoop]: Abstraction has 12010 states and 16902 transitions. [2022-11-03 02:44:00,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:44:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 12010 states and 16902 transitions. [2022-11-03 02:44:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-03 02:44:00,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:00,234 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:00,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:44:00,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:00,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:00,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1253162523, now seen corresponding path program 1 times [2022-11-03 02:44:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:00,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906603716] [2022-11-03 02:44:00,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:00,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:44:02,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:02,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906603716] [2022-11-03 02:44:02,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906603716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:02,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:02,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:02,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531545745] [2022-11-03 02:44:02,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:02,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:02,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:02,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:02,005 INFO L87 Difference]: Start difference. First operand 12010 states and 16902 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:44:04,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:09,333 INFO L93 Difference]: Finished difference Result 33961 states and 47841 transitions. [2022-11-03 02:44:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 177 [2022-11-03 02:44:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:09,486 INFO L225 Difference]: With dead ends: 33961 [2022-11-03 02:44:09,486 INFO L226 Difference]: Without dead ends: 21980 [2022-11-03 02:44:09,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:09,558 INFO L413 NwaCegarLoop]: 2571 mSDtfsCounter, 2285 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 4573 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:09,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 4573 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 704 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 02:44:09,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21980 states. [2022-11-03 02:44:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21980 to 21947. [2022-11-03 02:44:11,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21947 states, 12530 states have (on average 1.2725458898643256) internal successors, (15945), 13225 states have internal predecessors, (15945), 7482 states have call successors, (7482), 1947 states have call predecessors, (7482), 1932 states have return successors, (7482), 7191 states have call predecessors, (7482), 7478 states have call successors, (7482) [2022-11-03 02:44:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21947 states to 21947 states and 30909 transitions. [2022-11-03 02:44:11,489 INFO L78 Accepts]: Start accepts. Automaton has 21947 states and 30909 transitions. Word has length 177 [2022-11-03 02:44:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:11,491 INFO L495 AbstractCegarLoop]: Abstraction has 21947 states and 30909 transitions. [2022-11-03 02:44:11,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:44:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21947 states and 30909 transitions. [2022-11-03 02:44:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 02:44:11,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:11,506 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 14, 14, 14, 14, 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] [2022-11-03 02:44:11,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:44:11,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:11,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 221818770, now seen corresponding path program 1 times [2022-11-03 02:44:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:11,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325254093] [2022-11-03 02:44:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-03 02:44:13,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:13,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325254093] [2022-11-03 02:44:13,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325254093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:13,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:13,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:13,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480220552] [2022-11-03 02:44:13,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:13,295 INFO L87 Difference]: Start difference. First operand 21947 states and 30909 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:44:15,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:21,239 INFO L93 Difference]: Finished difference Result 60183 states and 84840 transitions. [2022-11-03 02:44:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 185 [2022-11-03 02:44:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:21,452 INFO L225 Difference]: With dead ends: 60183 [2022-11-03 02:44:21,452 INFO L226 Difference]: Without dead ends: 38265 [2022-11-03 02:44:21,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:21,544 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 2222 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:21,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 4865 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 809 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 02:44:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38265 states. [2022-11-03 02:44:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38265 to 38216. [2022-11-03 02:44:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38216 states, 21918 states have (on average 1.271055753262159) internal successors, (27859), 23171 states have internal predecessors, (27859), 12946 states have call successors, (12946), 3378 states have call predecessors, (12946), 3349 states have return successors, (12950), 12398 states have call predecessors, (12950), 12942 states have call successors, (12950) [2022-11-03 02:44:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38216 states to 38216 states and 53755 transitions. [2022-11-03 02:44:24,043 INFO L78 Accepts]: Start accepts. Automaton has 38216 states and 53755 transitions. Word has length 185 [2022-11-03 02:44:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:24,044 INFO L495 AbstractCegarLoop]: Abstraction has 38216 states and 53755 transitions. [2022-11-03 02:44:24,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:44:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 38216 states and 53755 transitions. [2022-11-03 02:44:24,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-03 02:44:24,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:24,049 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 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] [2022-11-03 02:44:24,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:44:24,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:24,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1351001441, now seen corresponding path program 1 times [2022-11-03 02:44:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:24,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572958876] [2022-11-03 02:44:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:29,100 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2022-11-03 02:44:29,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:29,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572958876] [2022-11-03 02:44:29,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572958876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:29,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:29,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:44:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552550165] [2022-11-03 02:44:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:29,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:44:29,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:44:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:44:29,103 INFO L87 Difference]: Start difference. First operand 38216 states and 53755 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:44:31,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:37,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:39,646 INFO L93 Difference]: Finished difference Result 38222 states and 53760 transitions. [2022-11-03 02:44:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:44:39,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2022-11-03 02:44:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:40,025 INFO L225 Difference]: With dead ends: 38222 [2022-11-03 02:44:40,026 INFO L226 Difference]: Without dead ends: 38220 [2022-11-03 02:44:40,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:44:40,045 INFO L413 NwaCegarLoop]: 2007 mSDtfsCounter, 2305 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 6016 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:40,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 6016 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:44:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38220 states. [2022-11-03 02:44:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38220 to 38220. [2022-11-03 02:44:41,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38220 states, 21921 states have (on average 1.271018657907942) internal successors, (27862), 23174 states have internal predecessors, (27862), 12946 states have call successors, (12946), 3379 states have call predecessors, (12946), 3350 states have return successors, (12950), 12398 states have call predecessors, (12950), 12942 states have call successors, (12950) [2022-11-03 02:44:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38220 states to 38220 states and 53758 transitions. [2022-11-03 02:44:42,268 INFO L78 Accepts]: Start accepts. Automaton has 38220 states and 53758 transitions. Word has length 209 [2022-11-03 02:44:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:42,269 INFO L495 AbstractCegarLoop]: Abstraction has 38220 states and 53758 transitions. [2022-11-03 02:44:42,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:44:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 38220 states and 53758 transitions. [2022-11-03 02:44:42,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-03 02:44:42,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:42,275 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:42,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:44:42,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash -498710804, now seen corresponding path program 1 times [2022-11-03 02:44:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:42,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474069075] [2022-11-03 02:44:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:42,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2022-11-03 02:44:46,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:46,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474069075] [2022-11-03 02:44:46,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474069075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:46,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:46,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:44:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30352546] [2022-11-03 02:44:46,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:46,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:44:46,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:46,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:44:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:44:46,359 INFO L87 Difference]: Start difference. First operand 38220 states and 53758 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, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:44:48,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:56,587 INFO L93 Difference]: Finished difference Result 38226 states and 53763 transitions. [2022-11-03 02:44:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:44:56,588 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, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 212 [2022-11-03 02:44:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:56,781 INFO L225 Difference]: With dead ends: 38226 [2022-11-03 02:44:56,781 INFO L226 Difference]: Without dead ends: 38224 [2022-11-03 02:44:56,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:44:56,805 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 2301 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 6019 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:56,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 6019 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 02:44:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38224 states. [2022-11-03 02:44:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38224 to 38224. [2022-11-03 02:44:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38224 states, 21924 states have (on average 1.2709815727057105) internal successors, (27865), 23177 states have internal predecessors, (27865), 12946 states have call successors, (12946), 3380 states have call predecessors, (12946), 3351 states have return successors, (12950), 12398 states have call predecessors, (12950), 12942 states have call successors, (12950) [2022-11-03 02:44:59,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38224 states to 38224 states and 53761 transitions. [2022-11-03 02:44:59,232 INFO L78 Accepts]: Start accepts. Automaton has 38224 states and 53761 transitions. Word has length 212 [2022-11-03 02:44:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:59,233 INFO L495 AbstractCegarLoop]: Abstraction has 38224 states and 53761 transitions. [2022-11-03 02:44:59,233 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, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:44:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 38224 states and 53761 transitions. [2022-11-03 02:44:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:44:59,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:59,246 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 3, 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] [2022-11-03 02:44:59,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:44:59,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash 414839932, now seen corresponding path program 1 times [2022-11-03 02:44:59,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:59,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591590527] [2022-11-03 02:44:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:59,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2022-11-03 02:45:03,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:03,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591590527] [2022-11-03 02:45:03,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591590527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:03,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:03,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567365796] [2022-11-03 02:45:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:03,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:03,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:03,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:03,535 INFO L87 Difference]: Start difference. First operand 38224 states and 53761 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:45:05,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:11,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:13,217 INFO L93 Difference]: Finished difference Result 38230 states and 53766 transitions. [2022-11-03 02:45:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:45:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2022-11-03 02:45:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:13,453 INFO L225 Difference]: With dead ends: 38230 [2022-11-03 02:45:13,453 INFO L226 Difference]: Without dead ends: 38226 [2022-11-03 02:45:13,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:45:13,467 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 2300 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 6019 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:13,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 6019 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 02:45:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38226 states. [2022-11-03 02:45:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38226 to 38226. [2022-11-03 02:45:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38226 states, 21926 states have (on average 1.2709112469214632) internal successors, (27866), 23178 states have internal predecessors, (27866), 12946 states have call successors, (12946), 3381 states have call predecessors, (12946), 3351 states have return successors, (12950), 12398 states have call predecessors, (12950), 12942 states have call successors, (12950) [2022-11-03 02:45:15,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38226 states to 38226 states and 53762 transitions. [2022-11-03 02:45:15,783 INFO L78 Accepts]: Start accepts. Automaton has 38226 states and 53762 transitions. Word has length 218 [2022-11-03 02:45:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:15,783 INFO L495 AbstractCegarLoop]: Abstraction has 38226 states and 53762 transitions. [2022-11-03 02:45:15,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:45:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 38226 states and 53762 transitions. [2022-11-03 02:45:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-03 02:45:15,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:15,790 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:45:15,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:45:15,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:45:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:15,791 INFO L85 PathProgramCache]: Analyzing trace with hash 520786508, now seen corresponding path program 1 times [2022-11-03 02:45:15,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:15,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356772747] [2022-11-03 02:45:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:15,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2022-11-03 02:45:19,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:19,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356772747] [2022-11-03 02:45:19,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356772747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:19,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:19,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:19,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954903338] [2022-11-03 02:45:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:19,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:19,607 INFO L87 Difference]: Start difference. First operand 38226 states and 53762 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, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:45:21,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:30,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:30,618 INFO L93 Difference]: Finished difference Result 43742 states and 60759 transitions. [2022-11-03 02:45:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:45:30,619 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, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 222 [2022-11-03 02:45:30,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:30,774 INFO L225 Difference]: With dead ends: 43742 [2022-11-03 02:45:30,774 INFO L226 Difference]: Without dead ends: 43463 [2022-11-03 02:45:30,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:45:30,792 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2162 mSDsluCounter, 5731 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 7143 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:30,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 7143 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1186 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-03 02:45:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43463 states. [2022-11-03 02:45:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43463 to 43463. [2022-11-03 02:45:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43463 states, 24783 states have (on average 1.259613444699996) internal successors, (31217), 26138 states have internal predecessors, (31217), 14492 states have call successors, (14492), 4198 states have call predecessors, (14492), 4186 states have return successors, (14500), 13970 states have call predecessors, (14500), 14492 states have call successors, (14500) [2022-11-03 02:45:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43463 states to 43463 states and 60209 transitions. [2022-11-03 02:45:33,543 INFO L78 Accepts]: Start accepts. Automaton has 43463 states and 60209 transitions. Word has length 222 [2022-11-03 02:45:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:33,545 INFO L495 AbstractCegarLoop]: Abstraction has 43463 states and 60209 transitions. [2022-11-03 02:45:33,545 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, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:45:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 43463 states and 60209 transitions. [2022-11-03 02:45:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-03 02:45:33,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:33,553 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 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] [2022-11-03 02:45:33,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:45:33,554 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:45:33,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:33,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1061686274, now seen corresponding path program 1 times [2022-11-03 02:45:33,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:33,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220918116] [2022-11-03 02:45:33,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:45:35,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:35,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220918116] [2022-11-03 02:45:35,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220918116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:35,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:35,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:45:35,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596112318] [2022-11-03 02:45:35,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:35,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:45:35,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:35,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:45:35,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:45:35,197 INFO L87 Difference]: Start difference. First operand 43463 states and 60209 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 02:45:37,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:42,892 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 []