./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-wireless-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW --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 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- 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-4e7fbc6 [2022-11-23 16:06:05,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:06:05,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:06:05,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:06:05,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:06:05,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:06:05,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:06:05,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:06:05,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:06:05,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:06:05,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:06:05,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:06:05,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:06:05,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:06:05,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:06:05,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:06:05,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:06:05,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:06:05,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:06:05,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:06:05,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:06:05,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:06:05,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:06:05,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:06:05,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:06:05,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:06:05,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:06:05,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:06:05,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:06:05,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:06:05,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:06:05,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:06:05,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:06:05,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:06:05,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:06:05,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:06:05,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:06:05,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:06:05,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:06:05,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:06:05,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:06:05,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 16:06:05,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:06:05,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:06:05,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:06:05,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:06:05,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:06:05,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:06:05,489 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:06:05,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:06:05,490 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:06:05,490 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:06:05,491 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:06:05,492 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:06:05,492 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:06:05,492 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:06:05,493 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:06:05,493 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:06:05,494 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:06:05,494 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:06:05,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:06:05,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:06:05,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:06:05,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:06:05,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:06:05,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:06:05,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:06:05,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:06:05,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:06:05,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:06:05,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:06:05,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:06:05,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:06:05,504 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:06:05,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:06:05,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:06:05,505 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:06:05,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:06:05,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:06:05,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:06:05,507 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_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2022-11-23 16:06:05,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:06:05,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:06:05,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:06:05,878 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:06:05,879 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:06:05,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-23 16:06:09,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:06:10,163 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:06:10,164 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-23 16:06:10,234 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/data/da2ce71d8/7af66c7ce98f4f88b135fe4d5e70764e/FLAG22369c129 [2022-11-23 16:06:10,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/data/da2ce71d8/7af66c7ce98f4f88b135fe4d5e70764e [2022-11-23 16:06:10,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:06:10,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:06:10,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:06:10,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:06:10,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:06:10,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:10" (1/1) ... [2022-11-23 16:06:10,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229184a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:10, skipping insertion in model container [2022-11-23 16:06:10,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:10" (1/1) ... [2022-11-23 16:06:10,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:06:10,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:06:15,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-23 16:06:15,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-23 16:06:15,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-23 16:06:15,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-23 16:06:16,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:06:16,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:06:16,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-23 16:06:16,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-23 16:06:16,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-23 16:06:16,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-23 16:06:16,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:06:17,216 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:06:17,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17 WrapperNode [2022-11-23 16:06:17,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:06:17,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:06:17,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:06:17,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:06:17,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:17,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:17,740 INFO L138 Inliner]: procedures = 538, calls = 6342, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 9020 [2022-11-23 16:06:17,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:06:17,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:06:17,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:06:17,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:06:17,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:17,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:17,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:17,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:06:18,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:06:18,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:06:18,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:06:18,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (1/1) ... [2022-11-23 16:06:18,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:06:18,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:06:18,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:06:18,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47ab1ae-e2ee-4a11-b215-e7508849f33a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:06:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-23 16:06:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-23 16:06:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-23 16:06:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-23 16:06:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-23 16:06:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-23 16:06:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-23 16:06:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 16:06:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 16:06:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 16:06:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 16:06:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-23 16:06:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-23 16:06:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 16:06:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 16:06:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 16:06:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 16:06:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-23 16:06:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-23 16:06:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 16:06:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 16:06:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 16:06:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 16:06:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 16:06:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 16:06:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-23 16:06:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-23 16:06:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-23 16:06:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-23 16:06:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 16:06:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-23 16:06:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-23 16:06:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 16:06:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 16:06:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 16:06:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 16:06:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 16:06:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 16:06:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 16:06:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 16:06:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-23 16:06:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-23 16:06:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 16:06:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 16:06:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-23 16:06:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-23 16:06:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 16:06:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 16:06:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-23 16:06:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-23 16:06:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 16:06:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 16:06:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:06:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2022-11-23 16:06:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2022-11-23 16:06:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 16:06:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 16:06:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 16:06:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 16:06:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2022-11-23 16:06:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2022-11-23 16:06:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-23 16:06:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-23 16:06:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 16:06:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 16:06:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 16:06:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 16:06:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 16:06:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-23 16:06:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-23 16:06:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 16:06:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 16:06:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-23 16:06:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-23 16:06:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-23 16:06:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-23 16:06:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 16:06:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 16:06:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 16:06:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:06:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 16:06:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 16:06:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 16:06:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 16:06:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 16:06:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 16:06:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 16:06:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 16:06:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2022-11-23 16:06:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2022-11-23 16:06:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-23 16:06:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-23 16:06:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 16:06:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 16:06:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:06:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 16:06:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 16:06:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 16:06:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 16:06:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-23 16:06:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-23 16:06:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 16:06:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 16:06:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:06:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 16:06:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 16:06:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 16:06:18,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 16:06:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 16:06:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 16:06:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 16:06:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 16:06:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 16:06:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 16:06:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 16:06:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 16:06:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 16:06:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 16:06:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 16:06:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 16:06:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 16:06:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 16:06:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-23 16:06:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-23 16:06:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 16:06:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 16:06:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 16:06:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 16:06:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-23 16:06:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-23 16:06:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-23 16:06:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-23 16:06:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 16:06:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 16:06:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:06:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:06:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-23 16:06:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-23 16:06:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 16:06:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 16:06:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 16:06:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 16:06:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-23 16:06:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-23 16:06:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2022-11-23 16:06:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2022-11-23 16:06:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 16:06:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 16:06:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 16:06:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 16:06:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 16:06:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 16:06:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2022-11-23 16:06:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2022-11-23 16:06:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-23 16:06:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-23 16:06:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-23 16:06:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 16:06:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 16:06:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 16:06:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 16:06:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 16:06:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 16:06:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 16:06:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 16:06:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 16:06:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 16:06:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 16:06:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 16:06:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:06:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 16:06:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 16:06:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-23 16:06:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-23 16:06:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-23 16:06:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-23 16:06:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 16:06:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2022-11-23 16:06:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2022-11-23 16:06:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-23 16:06:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-23 16:06:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-23 16:06:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-23 16:06:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 16:06:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2022-11-23 16:06:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2022-11-23 16:06:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 16:06:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 16:06:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2022-11-23 16:06:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2022-11-23 16:06:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-23 16:06:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-23 16:06:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 16:06:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 16:06:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 16:06:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 16:06:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 16:06:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 16:06:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-23 16:06:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-23 16:06:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-23 16:06:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-23 16:06:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 16:06:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 16:06:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 16:06:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 16:06:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-23 16:06:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-23 16:06:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 16:06:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 16:06:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-23 16:06:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-23 16:06:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-23 16:06:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-23 16:06:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-23 16:06:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-23 16:06:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 16:06:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 16:06:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 16:06:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 16:06:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 16:06:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 16:06:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-23 16:06:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-23 16:06:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-23 16:06:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-23 16:06:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 16:06:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 16:06:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 16:06:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 16:06:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-23 16:06:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-23 16:06:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:06:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-23 16:06:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-23 16:06:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-23 16:06:18,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-23 16:06:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 16:06:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 16:06:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-23 16:06:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-23 16:06:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-23 16:06:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-23 16:06:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-23 16:06:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-23 16:06:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 16:06:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 16:06:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-23 16:06:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-23 16:06:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-23 16:06:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-23 16:06:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 16:06:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 16:06:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 16:06:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 16:06:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 16:06:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 16:06:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-23 16:06:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-23 16:06:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-23 16:06:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-23 16:06:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-23 16:06:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-23 16:06:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 16:06:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 16:06:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 16:06:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 16:06:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:06:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 16:06:18,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 16:06:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-23 16:06:18,614 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-23 16:06:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-23 16:06:18,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-23 16:06:20,172 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:06:20,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:06:20,860 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 16:06:32,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 16:06:33,043 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:06:35,861 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:06:35,862 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 16:06:35,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:35 BoogieIcfgContainer [2022-11-23 16:06:35,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:06:35,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:06:35,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:06:35,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:06:35,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:10" (1/3) ... [2022-11-23 16:06:35,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66df874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:35, skipping insertion in model container [2022-11-23 16:06:35,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:17" (2/3) ... [2022-11-23 16:06:35,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66df874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:35, skipping insertion in model container [2022-11-23 16:06:35,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:35" (3/3) ... [2022-11-23 16:06:35,886 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-23 16:06:35,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:06:35,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 16:06:36,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:06:36,070 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;@7741ab91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:06:36,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 16:06:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 1848 states, 1096 states have (on average 1.311131386861314) internal successors, (1437), 1146 states have internal predecessors, (1437), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) [2022-11-23 16:06:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 16:06:36,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:36,128 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:36,129 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 2 more)] === [2022-11-23 16:06:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1773094722, now seen corresponding path program 1 times [2022-11-23 16:06:36,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:36,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891302218] [2022-11-23 16:06:36,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:36,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-23 16:06:38,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:38,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891302218] [2022-11-23 16:06:38,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891302218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:38,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:38,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:06:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370299934] [2022-11-23 16:06:38,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:38,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:06:38,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:38,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:06:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:06:38,226 INFO L87 Difference]: Start difference. First operand has 1848 states, 1096 states have (on average 1.311131386861314) internal successors, (1437), 1146 states have internal predecessors, (1437), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 16:06:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:44,442 INFO L93 Difference]: Finished difference Result 5449 states and 8044 transitions. [2022-11-23 16:06:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:06:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-23 16:06:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:44,511 INFO L225 Difference]: With dead ends: 5449 [2022-11-23 16:06:44,512 INFO L226 Difference]: Without dead ends: 3604 [2022-11-23 16:06:44,537 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 [2022-11-23 16:06:44,541 INFO L413 NwaCegarLoop]: 2896 mSDtfsCounter, 2566 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 5173 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:44,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2566 Valid, 5173 Invalid, 717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 16:06:44,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2022-11-23 16:06:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3598. [2022-11-23 16:06:45,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 2147 states have (on average 1.3041453190498369) internal successors, (2800), 2245 states have internal predecessors, (2800), 1191 states have call successors, (1191), 257 states have call predecessors, (1191), 256 states have return successors, (1187), 1149 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-23 16:06:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 5178 transitions. [2022-11-23 16:06:45,142 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 5178 transitions. Word has length 81 [2022-11-23 16:06:45,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:45,146 INFO L495 AbstractCegarLoop]: Abstraction has 3598 states and 5178 transitions. [2022-11-23 16:06:45,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 16:06:45,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5178 transitions. [2022-11-23 16:06:45,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 16:06:45,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:45,159 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:06:45,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_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 2 more)] === [2022-11-23 16:06:45,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:45,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1078823123, now seen corresponding path program 1 times [2022-11-23 16:06:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:45,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705861210] [2022-11-23 16:06:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-23 16:06:46,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:46,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705861210] [2022-11-23 16:06:46,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705861210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:46,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:46,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:06:46,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959830303] [2022-11-23 16:06:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:46,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:06:46,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:06:46,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:06:46,286 INFO L87 Difference]: Start difference. First operand 3598 states and 5178 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 16:06:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:51,906 INFO L93 Difference]: Finished difference Result 8958 states and 12889 transitions. [2022-11-23 16:06:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:06:51,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-23 16:06:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:52,135 INFO L225 Difference]: With dead ends: 8958 [2022-11-23 16:06:52,135 INFO L226 Difference]: Without dead ends: 5373 [2022-11-23 16:06:52,157 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 [2022-11-23 16:06:52,159 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 2567 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:52,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 5185 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 16:06:52,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2022-11-23 16:06:52,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5351. [2022-11-23 16:06:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 3190 states have (on average 1.3031347962382445) internal successors, (4157), 3339 states have internal predecessors, (4157), 1772 states have call successors, (1772), 386 states have call predecessors, (1772), 385 states have return successors, (1768), 1706 states have call predecessors, (1768), 1768 states have call successors, (1768) [2022-11-23 16:06:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 7697 transitions. [2022-11-23 16:06:52,535 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 7697 transitions. Word has length 81 [2022-11-23 16:06:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:52,539 INFO L495 AbstractCegarLoop]: Abstraction has 5351 states and 7697 transitions. [2022-11-23 16:06:52,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 16:06:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 7697 transitions. [2022-11-23 16:06:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 16:06:52,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:52,543 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:52,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:06:52,544 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 2 more)] === [2022-11-23 16:06:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash 776213406, now seen corresponding path program 1 times [2022-11-23 16:06:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:52,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399386337] [2022-11-23 16:06:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:52,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-23 16:06:55,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:55,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399386337] [2022-11-23 16:06:55,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399386337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:55,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:55,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 16:06:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847440772] [2022-11-23 16:06:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:55,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:06:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:55,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:06:55,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:55,030 INFO L87 Difference]: Start difference. First operand 5351 states and 7697 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 16:07:07,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:12,641 INFO L93 Difference]: Finished difference Result 16156 states and 23117 transitions. [2022-11-23 16:07:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:07:12,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-23 16:07:12,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:12,735 INFO L225 Difference]: With dead ends: 16156 [2022-11-23 16:07:12,736 INFO L226 Difference]: Without dead ends: 10818 [2022-11-23 16:07:12,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:07:12,771 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 6096 mSDsluCounter, 5371 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 8674 SdHoareTripleChecker+Invalid, 4377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:12,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6230 Valid, 8674 Invalid, 4377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [936 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2022-11-23 16:07:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2022-11-23 16:07:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 10766. [2022-11-23 16:07:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10766 states, 6478 states have (on average 1.302562519296079) internal successors, (8438), 6806 states have internal predecessors, (8438), 3450 states have call successors, (3450), 839 states have call predecessors, (3450), 834 states have return successors, (3446), 3294 states have call predecessors, (3446), 3446 states have call successors, (3446) [2022-11-23 16:07:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10766 states to 10766 states and 15334 transitions. [2022-11-23 16:07:13,570 INFO L78 Accepts]: Start accepts. Automaton has 10766 states and 15334 transitions. Word has length 84 [2022-11-23 16:07:13,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:07:13,571 INFO L495 AbstractCegarLoop]: Abstraction has 10766 states and 15334 transitions. [2022-11-23 16:07:13,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 16:07:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10766 states and 15334 transitions. [2022-11-23 16:07:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 16:07:13,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:13,575 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:07:13,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 16:07:13,576 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 2 more)] === [2022-11-23 16:07:13,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash 210966089, now seen corresponding path program 1 times [2022-11-23 16:07:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881235468] [2022-11-23 16:07:13,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:13,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-23 16:07:14,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:14,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881235468] [2022-11-23 16:07:14,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881235468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:14,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:14,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:07:14,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293165027] [2022-11-23 16:07:14,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:14,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:07:14,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:14,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:07:14,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:07:14,347 INFO L87 Difference]: Start difference. First operand 10766 states and 15334 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 16:07:21,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:22,142 INFO L93 Difference]: Finished difference Result 26699 states and 37859 transitions. [2022-11-23 16:07:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:07:22,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-11-23 16:07:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:22,287 INFO L225 Difference]: With dead ends: 26699 [2022-11-23 16:07:22,288 INFO L226 Difference]: Without dead ends: 15946 [2022-11-23 16:07:22,363 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 [2022-11-23 16:07:22,364 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 2451 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:22,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 5090 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 16:07:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15946 states. [2022-11-23 16:07:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15946 to 15898. [2022-11-23 16:07:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15898 states, 9560 states have (on average 1.2940376569037657) internal successors, (12371), 10020 states have internal predecessors, (12371), 5044 states have call successors, (5044), 1307 states have call predecessors, (5044), 1290 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-23 16:07:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15898 states to 15898 states and 22459 transitions. [2022-11-23 16:07:23,825 INFO L78 Accepts]: Start accepts. Automaton has 15898 states and 22459 transitions. Word has length 91 [2022-11-23 16:07:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:07:23,827 INFO L495 AbstractCegarLoop]: Abstraction has 15898 states and 22459 transitions. [2022-11-23 16:07:23,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 16:07:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 15898 states and 22459 transitions. [2022-11-23 16:07:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-23 16:07:23,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:23,832 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-23 16:07:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 16:07:23,833 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 2 more)] === [2022-11-23 16:07:23,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1647145742, now seen corresponding path program 1 times [2022-11-23 16:07:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:23,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505934141] [2022-11-23 16:07:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-23 16:07:26,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:26,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505934141] [2022-11-23 16:07:26,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505934141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:26,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:26,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:07:26,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661884901] [2022-11-23 16:07:26,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:26,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:07:26,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:07:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:07:26,757 INFO L87 Difference]: Start difference. First operand 15898 states and 22459 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 16:07:28,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:34,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:36,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:38,825 INFO L93 Difference]: Finished difference Result 15904 states and 22464 transitions. [2022-11-23 16:07:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:07:38,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 123 [2022-11-23 16:07:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:38,916 INFO L225 Difference]: With dead ends: 15904 [2022-11-23 16:07:38,916 INFO L226 Difference]: Without dead ends: 15902 [2022-11-23 16:07:38,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:07:38,925 INFO L413 NwaCegarLoop]: 2290 mSDtfsCounter, 2603 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2609 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:38,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2609 Valid, 6862 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1050 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2022-11-23 16:07:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15902 states. [2022-11-23 16:07:40,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15902 to 15902. [2022-11-23 16:07:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15902 states, 9563 states have (on average 1.2939454146188434) internal successors, (12374), 10023 states have internal predecessors, (12374), 5044 states have call successors, (5044), 1308 states have call predecessors, (5044), 1291 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-23 16:07:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15902 states to 15902 states and 22462 transitions. [2022-11-23 16:07:40,182 INFO L78 Accepts]: Start accepts. Automaton has 15902 states and 22462 transitions. Word has length 123 [2022-11-23 16:07:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:07:40,184 INFO L495 AbstractCegarLoop]: Abstraction has 15902 states and 22462 transitions. [2022-11-23 16:07:40,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 16:07:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 15902 states and 22462 transitions. [2022-11-23 16:07:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-23 16:07:40,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:40,189 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 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] [2022-11-23 16:07:40,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 16:07:40,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 2 more)] === [2022-11-23 16:07:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:40,191 INFO L85 PathProgramCache]: Analyzing trace with hash -210931868, now seen corresponding path program 1 times [2022-11-23 16:07:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:40,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106786811] [2022-11-23 16:07:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:40,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-23 16:07:42,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:42,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106786811] [2022-11-23 16:07:42,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106786811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:42,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:42,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:07:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364283661] [2022-11-23 16:07:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:42,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:07:42,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:07:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:07:42,810 INFO L87 Difference]: Start difference. First operand 15902 states and 22462 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 16:07:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:50,979 INFO L93 Difference]: Finished difference Result 15908 states and 22467 transitions. [2022-11-23 16:07:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:07:50,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2022-11-23 16:07:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:51,091 INFO L225 Difference]: With dead ends: 15908 [2022-11-23 16:07:51,091 INFO L226 Difference]: Without dead ends: 15906 [2022-11-23 16:07:51,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:07:51,108 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 2597 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 6865 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:51,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 6865 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-23 16:07:51,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15906 states. [2022-11-23 16:07:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15906 to 15906. [2022-11-23 16:07:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15906 states, 9566 states have (on average 1.2938532301902572) internal successors, (12377), 10026 states have internal predecessors, (12377), 5044 states have call successors, (5044), 1309 states have call predecessors, (5044), 1292 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-23 16:07:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15906 states to 15906 states and 22465 transitions. [2022-11-23 16:07:52,500 INFO L78 Accepts]: Start accepts. Automaton has 15906 states and 22465 transitions. Word has length 131 [2022-11-23 16:07:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:07:52,501 INFO L495 AbstractCegarLoop]: Abstraction has 15906 states and 22465 transitions. [2022-11-23 16:07:52,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 16:07:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15906 states and 22465 transitions. [2022-11-23 16:07:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-23 16:07:52,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:52,508 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 3, 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] [2022-11-23 16:07:52,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 16:07:52,509 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 2 more)] === [2022-11-23 16:07:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1344893329, now seen corresponding path program 1 times [2022-11-23 16:07:52,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:52,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720279157] [2022-11-23 16:07:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-23 16:07:55,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:55,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720279157] [2022-11-23 16:07:55,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720279157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:55,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:55,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:07:55,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809148255] [2022-11-23 16:07:55,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:55,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:07:55,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:07:55,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:07:55,079 INFO L87 Difference]: Start difference. First operand 15906 states and 22465 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 16:08:01,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:02,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:08,215 INFO L93 Difference]: Finished difference Result 30878 states and 43836 transitions. [2022-11-23 16:08:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 16:08:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2022-11-23 16:08:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:08,415 INFO L225 Difference]: With dead ends: 30878 [2022-11-23 16:08:08,415 INFO L226 Difference]: Without dead ends: 30876 [2022-11-23 16:08:08,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:08:08,437 INFO L413 NwaCegarLoop]: 3012 mSDtfsCounter, 2581 mSDsluCounter, 8244 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 11256 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:08,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 11256 Invalid, 1465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-23 16:08:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30876 states. [2022-11-23 16:08:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30876 to 30834. [2022-11-23 16:08:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30834 states, 18535 states have (on average 1.2953871054761263) internal successors, (24010), 19461 states have internal predecessors, (24010), 9832 states have call successors, (9832), 2531 states have call predecessors, (9832), 2463 states have return successors, (9948), 9325 states have call predecessors, (9948), 9824 states have call successors, (9948) [2022-11-23 16:08:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30834 states to 30834 states and 43790 transitions. [2022-11-23 16:08:11,167 INFO L78 Accepts]: Start accepts. Automaton has 30834 states and 43790 transitions. Word has length 137 [2022-11-23 16:08:11,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:11,168 INFO L495 AbstractCegarLoop]: Abstraction has 30834 states and 43790 transitions. [2022-11-23 16:08:11,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 16:08:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 30834 states and 43790 transitions. [2022-11-23 16:08:11,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 16:08:11,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:11,176 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 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] [2022-11-23 16:08:11,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 16:08:11,177 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 2 more)] === [2022-11-23 16:08:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -305792136, now seen corresponding path program 1 times [2022-11-23 16:08:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482489823] [2022-11-23 16:08:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:11,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-11-23 16:08:13,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482489823] [2022-11-23 16:08:13,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482489823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:13,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:13,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:08:13,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024314051] [2022-11-23 16:08:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:13,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:08:13,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:13,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:08:13,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:08:13,672 INFO L87 Difference]: Start difference. First operand 30834 states and 43790 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 16:08:20,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:27,774 INFO L93 Difference]: Finished difference Result 60150 states and 86594 transitions. [2022-11-23 16:08:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 16:08:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-23 16:08:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:28,376 INFO L225 Difference]: With dead ends: 60150 [2022-11-23 16:08:28,376 INFO L226 Difference]: Without dead ends: 60148 [2022-11-23 16:08:28,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:08:28,409 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 2551 mSDsluCounter, 8225 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 11189 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:28,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 11189 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1437 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-23 16:08:28,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60148 states. [2022-11-23 16:08:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60148 to 60120. [2022-11-23 16:08:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60120 states, 36094 states have (on average 1.2952568293899263) internal successors, (46751), 37914 states have internal predecessors, (46751), 19156 states have call successors, (19156), 5002 states have call predecessors, (19156), 4866 states have return successors, (20660), 18123 states have call predecessors, (20660), 19140 states have call successors, (20660) [2022-11-23 16:08:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60120 states to 60120 states and 86567 transitions. [2022-11-23 16:08:33,503 INFO L78 Accepts]: Start accepts. Automaton has 60120 states and 86567 transitions. Word has length 142 [2022-11-23 16:08:33,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:33,504 INFO L495 AbstractCegarLoop]: Abstraction has 60120 states and 86567 transitions. [2022-11-23 16:08:33,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 16:08:33,505 INFO L276 IsEmpty]: Start isEmpty. Operand 60120 states and 86567 transitions. [2022-11-23 16:08:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-23 16:08:33,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:33,513 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 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] [2022-11-23 16:08:33,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 16:08:33,514 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_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 2 more)] === [2022-11-23 16:08:33,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:33,515 INFO L85 PathProgramCache]: Analyzing trace with hash 212827415, now seen corresponding path program 1 times [2022-11-23 16:08:33,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:33,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47323852] [2022-11-23 16:08:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-23 16:08:34,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:34,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47323852] [2022-11-23 16:08:34,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47323852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:34,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:34,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:08:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560314449] [2022-11-23 16:08:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:34,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:08:34,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:34,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:08:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:08:34,812 INFO L87 Difference]: Start difference. First operand 60120 states and 86567 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 16:08:49,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:50,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:09:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:03,057 INFO L93 Difference]: Finished difference Result 178992 states and 257881 transitions. [2022-11-23 16:09:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:09:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2022-11-23 16:09:03,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:04,359 INFO L225 Difference]: With dead ends: 178992 [2022-11-23 16:09:04,360 INFO L226 Difference]: Without dead ends: 119336 [2022-11-23 16:09:04,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:09:04,675 INFO L413 NwaCegarLoop]: 5011 mSDtfsCounter, 4905 mSDsluCounter, 6438 mSDsCounter, 0 mSdLazyCounter, 5649 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 11449 SdHoareTripleChecker+Invalid, 5799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 5649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:04,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 11449 Invalid, 5799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 5649 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2022-11-23 16:09:04,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119336 states. [2022-11-23 16:09:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119336 to 118900. [2022-11-23 16:09:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118900 states, 71312 states have (on average 1.2957566748934262) internal successors, (92403), 74988 states have internal predecessors, (92403), 37944 states have call successors, (37944), 9908 states have call predecessors, (37944), 9640 states have return successors, (40968), 35835 states have call predecessors, (40968), 37928 states have call successors, (40968) [2022-11-23 16:09:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118900 states to 118900 states and 171315 transitions. [2022-11-23 16:09:14,337 INFO L78 Accepts]: Start accepts. Automaton has 118900 states and 171315 transitions. Word has length 138 [2022-11-23 16:09:14,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:14,339 INFO L495 AbstractCegarLoop]: Abstraction has 118900 states and 171315 transitions. [2022-11-23 16:09:14,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 16:09:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 118900 states and 171315 transitions. [2022-11-23 16:09:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-23 16:09:14,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:14,346 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2022-11-23 16:09:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 16:09:14,347 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 2 more)] === [2022-11-23 16:09:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:14,348 INFO L85 PathProgramCache]: Analyzing trace with hash 20244547, now seen corresponding path program 1 times [2022-11-23 16:09:14,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:14,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377649756] [2022-11-23 16:09:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-23 16:09:16,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:16,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377649756] [2022-11-23 16:09:16,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377649756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:16,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:16,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:09:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415873160] [2022-11-23 16:09:16,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:16,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:09:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:09:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:09:16,905 INFO L87 Difference]: Start difference. First operand 118900 states and 171315 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)