./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba --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 ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b --- 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-b5237d8 [2022-11-22 01:54:12,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:54:12,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:54:12,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:54:12,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:54:12,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:54:12,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:54:12,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:54:12,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:54:12,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:54:12,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:54:12,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:54:12,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:54:12,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:54:12,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:54:12,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:54:12,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:54:12,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:54:12,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:54:12,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:54:12,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:54:12,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:54:12,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:54:12,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:54:12,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:54:12,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:54:12,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:54:12,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:54:12,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:54:12,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:54:12,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:54:12,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:54:12,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:54:12,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:54:12,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:54:12,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:54:12,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:54:12,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:54:12,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:54:12,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:54:12,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:54:12,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:54:12,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:54:12,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:54:12,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:54:12,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:54:12,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:54:12,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:54:12,138 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:54:12,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:54:12,138 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:54:12,139 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:54:12,139 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:54:12,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:54:12,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:54:12,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:54:12,140 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:54:12,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:54:12,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:54:12,141 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:54:12,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:54:12,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:54:12,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:54:12,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:54:12,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:54:12,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:54:12,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:54:12,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:54:12,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:54:12,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:54:12,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:54:12,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:12,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:54:12,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:54:12,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:54:12,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:54:12,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:54:12,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:54:12,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:54:12,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:54:12,147 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_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b [2022-11-22 01:54:12,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:54:12,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:54:12,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:54:12,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:54:12,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:54:12,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:54:15,612 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:54:16,536 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:54:16,537 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:54:16,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/data/6a280a313/9910d5ceb47e47b387ccab8f689e049d/FLAG2d3fbf5e3 [2022-11-22 01:54:16,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/data/6a280a313/9910d5ceb47e47b387ccab8f689e049d [2022-11-22 01:54:16,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:54:16,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:54:16,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:16,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:54:16,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:54:16,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:16" (1/1) ... [2022-11-22 01:54:16,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f968ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:16, skipping insertion in model container [2022-11-22 01:54:16,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:16" (1/1) ... [2022-11-22 01:54:16,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:54:17,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:54:23,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647538,647551] [2022-11-22 01:54:23,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647707,647720] [2022-11-22 01:54:23,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647874,647887] [2022-11-22 01:54:23,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[648042,648055] [2022-11-22 01:54:23,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:24,028 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:54:24,742 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647538,647551] [2022-11-22 01:54:24,742 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647707,647720] [2022-11-22 01:54:24,743 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647874,647887] [2022-11-22 01:54:24,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[648042,648055] [2022-11-22 01:54:24,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:25,190 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:54:25,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25 WrapperNode [2022-11-22 01:54:25,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:25,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:25,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:54:25,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:54:25,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:25,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:25,939 INFO L138 Inliner]: procedures = 794, calls = 7653, calls flagged for inlining = 373, calls inlined = 338, statements flattened = 15719 [2022-11-22 01:54:25,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:25,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:54:25,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:54:25,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:54:25,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:25,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:26,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:27,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:54:27,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:54:27,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:54:27,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:54:27,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:27,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:27,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:27,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:54:27,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:54:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:54:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:54:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 01:54:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 01:54:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 01:54:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-22 01:54:27,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-22 01:54:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-22 01:54:27,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-22 01:54:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-22 01:54:27,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-22 01:54:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-22 01:54:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-22 01:54:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-22 01:54:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-22 01:54:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:54:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:54:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:54:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:54:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:54:27,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:54:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:54:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:54:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-22 01:54:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-22 01:54:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-22 01:54:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-22 01:54:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:54:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:54:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:54:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:54:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:54:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:54:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-22 01:54:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-22 01:54:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-22 01:54:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-22 01:54:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:54:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:54:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:54:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:54:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-22 01:54:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-22 01:54:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-22 01:54:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-22 01:54:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-22 01:54:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-22 01:54:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-22 01:54:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-22 01:54:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:54:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:54:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-22 01:54:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-22 01:54:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 01:54:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-22 01:54:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:54:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:54:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-22 01:54:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-22 01:54:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 01:54:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 01:54:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:54:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:54:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-22 01:54:27,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-22 01:54:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-22 01:54:27,130 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-22 01:54:27,130 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-22 01:54:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-22 01:54:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:54:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:54:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:54:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:54:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:54:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-22 01:54:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-22 01:54:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:54:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:54:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-22 01:54:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-22 01:54:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:54:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:54:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-22 01:54:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-22 01:54:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-22 01:54:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-22 01:54:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:54:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:54:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:54:27,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:54:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:54:27,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:54:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:54:27,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:54:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:54:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-22 01:54:27,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-22 01:54:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:54:27,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:54:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:54:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:54:27,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:54:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:54:27,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:54:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:54:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:54:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-22 01:54:27,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-22 01:54:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-22 01:54:27,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-22 01:54:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:54:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:54:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-22 01:54:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-22 01:54:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:54:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:54:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2022-11-22 01:54:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2022-11-22 01:54:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:54:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:54:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:54:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:54:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-22 01:54:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-22 01:54:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-22 01:54:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-22 01:54:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:54:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:54:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2022-11-22 01:54:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2022-11-22 01:54:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:54:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:54:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-22 01:54:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-22 01:54:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-22 01:54:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-22 01:54:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:54:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:54:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:54:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-22 01:54:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-22 01:54:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:54:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:54:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-22 01:54:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-22 01:54:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:54:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:54:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:54:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-22 01:54:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-22 01:54:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:54:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:54:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-22 01:54:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-22 01:54:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-22 01:54:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-22 01:54:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:54:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:54:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-22 01:54:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-22 01:54:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:54:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:54:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:54:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:54:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:54:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:54:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:54:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:54:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-22 01:54:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-22 01:54:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:54:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:54:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:54:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:54:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:54:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-22 01:54:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-22 01:54:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-22 01:54:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-22 01:54:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-22 01:54:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-22 01:54:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:54:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 01:54:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 01:54:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-22 01:54:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-22 01:54:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-22 01:54:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-22 01:54:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-22 01:54:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-22 01:54:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:54:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:54:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-22 01:54:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-22 01:54:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:54:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:54:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:54:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:54:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-22 01:54:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-22 01:54:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-22 01:54:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-22 01:54:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:54:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:54:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:54:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:54:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:54:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:54:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:54:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:54:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-22 01:54:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-22 01:54:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:54:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:54:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:54:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:54:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:54:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2022-11-22 01:54:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2022-11-22 01:54:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-11-22 01:54:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-11-22 01:54:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-22 01:54:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-22 01:54:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-22 01:54:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-22 01:54:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-22 01:54:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-22 01:54:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-22 01:54:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-22 01:54:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:54:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:54:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:54:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:54:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-22 01:54:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-22 01:54:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-22 01:54:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-22 01:54:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:54:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:54:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-22 01:54:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-22 01:54:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-22 01:54:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-22 01:54:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-22 01:54:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-22 01:54:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:54:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:54:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-22 01:54:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-22 01:54:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-22 01:54:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-22 01:54:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-22 01:54:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-22 01:54:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:54:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:54:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:54:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-22 01:54:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-22 01:54:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-22 01:54:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-22 01:54:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 01:54:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 01:54:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:54:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:54:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2022-11-22 01:54:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2022-11-22 01:54:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:54:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:54:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:54:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:54:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:54:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:54:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-22 01:54:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-22 01:54:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:54:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:54:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:54:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:54:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-22 01:54:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-22 01:54:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 01:54:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 01:54:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:54:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:54:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-22 01:54:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-22 01:54:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:54:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:54:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-22 01:54:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-22 01:54:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2022-11-22 01:54:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2022-11-22 01:54:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2022-11-22 01:54:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2022-11-22 01:54:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:54:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:54:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-22 01:54:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-22 01:54:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-22 01:54:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-22 01:54:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-22 01:54:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-22 01:54:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:54:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:54:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-22 01:54:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-22 01:54:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:54:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:54:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:54:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:54:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:54:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:54:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:54:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:54:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2022-11-22 01:54:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2022-11-22 01:54:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:54:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:54:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:54:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-22 01:54:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-22 01:54:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:54:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:54:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-22 01:54:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-22 01:54:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-22 01:54:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-22 01:54:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:54:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:54:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-22 01:54:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-22 01:54:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 01:54:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 01:54:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:54:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-22 01:54:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-22 01:54:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:54:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:54:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:54:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-22 01:54:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-22 01:54:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:54:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:54:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:54:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:54:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:54:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:54:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:54:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:54:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-22 01:54:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-22 01:54:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-22 01:54:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-22 01:54:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2022-11-22 01:54:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2022-11-22 01:54:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-22 01:54:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-22 01:54:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-22 01:54:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-22 01:54:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-22 01:54:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-22 01:54:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-22 01:54:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-22 01:54:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:54:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:54:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:54:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:54:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-22 01:54:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-22 01:54:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-22 01:54:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-22 01:54:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:54:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:54:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-22 01:54:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-22 01:54:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:54:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:54:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-22 01:54:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-22 01:54:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:54:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:54:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:54:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:54:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-22 01:54:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-22 01:54:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 01:54:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 01:54:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-22 01:54:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-22 01:54:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:54:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:54:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:54:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:54:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-22 01:54:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-22 01:54:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-22 01:54:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-22 01:54:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:54:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:54:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:54:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:54:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:54:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-22 01:54:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-22 01:54:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:54:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:54:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:54:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:54:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-22 01:54:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-22 01:54:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:54:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-22 01:54:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-22 01:54:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-22 01:54:27,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-22 01:54:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:54:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:54:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-22 01:54:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-22 01:54:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-22 01:54:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-22 01:54:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-22 01:54:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-22 01:54:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-22 01:54:27,202 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-22 01:54:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:54:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:54:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:54:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:54:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:54:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:54:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:54:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:54:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 01:54:27,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 01:54:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:54:27,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:54:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:54:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-22 01:54:27,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-22 01:54:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:54:27,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:54:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:54:27,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:54:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:54:27,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:54:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:54:27,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:54:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-22 01:54:27,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-22 01:54:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-22 01:54:27,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-22 01:54:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-22 01:54:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-22 01:54:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:54:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:54:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-11-22 01:54:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-11-22 01:54:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-22 01:54:27,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-22 01:54:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:54:27,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:54:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-22 01:54:27,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-22 01:54:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:54:27,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:54:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-22 01:54:27,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-22 01:54:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:54:27,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:54:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:54:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:54:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:54:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:54:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-22 01:54:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-22 01:54:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:54:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:54:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-22 01:54:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-22 01:54:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:54:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:54:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:54:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:54:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-22 01:54:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-22 01:54:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-22 01:54:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-22 01:54:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:54:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:54:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-22 01:54:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-22 01:54:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:54:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:54:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:54:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-22 01:54:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-22 01:54:27,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:54:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:54:27,214 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-22 01:54:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-22 01:54:27,214 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-22 01:54:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-22 01:54:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-22 01:54:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-22 01:54:28,992 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:54:28,999 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:54:29,131 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:54:51,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:54:58,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:54:58,424 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 01:54:58,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:58 BoogieIcfgContainer [2022-11-22 01:54:58,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:54:58,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:54:58,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:54:58,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:54:58,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:16" (1/3) ... [2022-11-22 01:54:58,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71274044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:58, skipping insertion in model container [2022-11-22 01:54:58,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25" (2/3) ... [2022-11-22 01:54:58,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71274044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:58, skipping insertion in model container [2022-11-22 01:54:58,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:58" (3/3) ... [2022-11-22 01:54:58,451 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:54:58,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:54:58,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:54:58,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:54:58,659 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;@13648a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:54:58,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:54:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 3645 states, 2161 states have (on average 1.3021749190189726) internal successors, (2814), 2241 states have internal predecessors, (2814), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) [2022-11-22 01:54:58,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:54:58,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:58,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:58,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:54:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1821465853, now seen corresponding path program 1 times [2022-11-22 01:54:58,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:58,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736289440] [2022-11-22 01:54:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:00,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:55:00,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:00,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736289440] [2022-11-22 01:55:00,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736289440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:00,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:00,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:55:00,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224232136] [2022-11-22 01:55:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:00,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:00,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:00,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:00,948 INFO L87 Difference]: Start difference. First operand has 3645 states, 2161 states have (on average 1.3021749190189726) internal successors, (2814), 2241 states have internal predecessors, (2814), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:55:05,428 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 [] [2022-11-22 01:55:07,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:15,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:17,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:19,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:20,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:29,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:29,913 INFO L93 Difference]: Finished difference Result 8997 states and 13027 transitions. [2022-11-22 01:55:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:55:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-11-22 01:55:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:29,966 INFO L225 Difference]: With dead ends: 8997 [2022-11-22 01:55:29,967 INFO L226 Difference]: Without dead ends: 5360 [2022-11-22 01:55:29,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:55:29,992 INFO L413 NwaCegarLoop]: 5308 mSDtfsCounter, 5226 mSDsluCounter, 12680 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5248 SdHoareTripleChecker+Valid, 17988 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:29,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5248 Valid, 17988 Invalid, 2597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2593 Invalid, 3 Unknown, 0 Unchecked, 28.2s Time] [2022-11-22 01:55:30,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2022-11-22 01:55:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5352. [2022-11-22 01:55:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 3201 states have (on average 1.2992814745392065) internal successors, (4159), 3315 states have internal predecessors, (4159), 1753 states have call successors, (1753), 396 states have call predecessors, (1753), 395 states have return successors, (1754), 1722 states have call predecessors, (1754), 1750 states have call successors, (1754) [2022-11-22 01:55:30,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 7666 transitions. [2022-11-22 01:55:30,460 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 7666 transitions. Word has length 35 [2022-11-22 01:55:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:30,461 INFO L495 AbstractCegarLoop]: Abstraction has 5352 states and 7666 transitions. [2022-11-22 01:55:30,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:55:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 7666 transitions. [2022-11-22 01:55:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 01:55:30,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:30,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:30,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:55:30,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:55:30,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:30,468 INFO L85 PathProgramCache]: Analyzing trace with hash -13612336, now seen corresponding path program 1 times [2022-11-22 01:55:30,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:30,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046549859] [2022-11-22 01:55:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:30,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:55:31,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:31,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046549859] [2022-11-22 01:55:31,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046549859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:31,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:31,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:55:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782900897] [2022-11-22 01:55:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:31,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:31,789 INFO L87 Difference]: Start difference. First operand 5352 states and 7666 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:55:35,589 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 [] [2022-11-22 01:55:37,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:41,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:46,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:47,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:50,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:56,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:00,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:00,341 INFO L93 Difference]: Finished difference Result 5366 states and 7678 transitions. [2022-11-22 01:56:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:56:00,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-11-22 01:56:00,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:00,387 INFO L225 Difference]: With dead ends: 5366 [2022-11-22 01:56:00,387 INFO L226 Difference]: Without dead ends: 5364 [2022-11-22 01:56:00,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:56:00,394 INFO L413 NwaCegarLoop]: 5294 mSDtfsCounter, 5205 mSDsluCounter, 12644 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 17938 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:00,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 17938 Invalid, 2597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2593 Invalid, 3 Unknown, 0 Unchecked, 27.9s Time] [2022-11-22 01:56:00,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-11-22 01:56:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 5356. [2022-11-22 01:56:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 3204 states have (on average 1.2990012484394506) internal successors, (4162), 3318 states have internal predecessors, (4162), 1753 states have call successors, (1753), 397 states have call predecessors, (1753), 396 states have return successors, (1754), 1722 states have call predecessors, (1754), 1750 states have call successors, (1754) [2022-11-22 01:56:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7669 transitions. [2022-11-22 01:56:00,832 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7669 transitions. Word has length 40 [2022-11-22 01:56:00,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:00,833 INFO L495 AbstractCegarLoop]: Abstraction has 5356 states and 7669 transitions. [2022-11-22 01:56:00,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:56:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7669 transitions. [2022-11-22 01:56:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 01:56:00,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:00,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:00,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:56:00,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:56:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -720138133, now seen corresponding path program 1 times [2022-11-22 01:56:00,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:00,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740043342] [2022-11-22 01:56:00,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:00,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 01:56:02,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:02,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740043342] [2022-11-22 01:56:02,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740043342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:02,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:02,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:56:02,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244553685] [2022-11-22 01:56:02,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:02,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:02,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:02,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:02,441 INFO L87 Difference]: Start difference. First operand 5356 states and 7669 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:56:06,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:08,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:56:15,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:17,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:24,725 INFO L93 Difference]: Finished difference Result 7061 states and 10051 transitions. [2022-11-22 01:56:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:56:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2022-11-22 01:56:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:24,780 INFO L225 Difference]: With dead ends: 7061 [2022-11-22 01:56:24,780 INFO L226 Difference]: Without dead ends: 7059 [2022-11-22 01:56:24,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:56:24,788 INFO L413 NwaCegarLoop]: 5255 mSDtfsCounter, 5188 mSDsluCounter, 12566 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 17821 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:24,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 17821 Invalid, 2570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2565 Invalid, 4 Unknown, 0 Unchecked, 21.8s Time] [2022-11-22 01:56:24,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2022-11-22 01:56:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 7051. [2022-11-22 01:56:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 4233 states have (on average 1.2993149066855658) internal successors, (5500), 4383 states have internal predecessors, (5500), 2269 states have call successors, (2269), 547 states have call predecessors, (2269), 546 states have return successors, (2273), 2230 states have call predecessors, (2273), 2266 states have call successors, (2273) [2022-11-22 01:56:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 10042 transitions. [2022-11-22 01:56:25,369 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 10042 transitions. Word has length 51 [2022-11-22 01:56:25,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:25,370 INFO L495 AbstractCegarLoop]: Abstraction has 7051 states and 10042 transitions. [2022-11-22 01:56:25,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:56:25,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 10042 transitions. [2022-11-22 01:56:25,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-22 01:56:25,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:25,371 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:25,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:56:25,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:56:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:25,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1527069602, now seen corresponding path program 1 times [2022-11-22 01:56:25,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:25,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738098111] [2022-11-22 01:56:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:25,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:56:26,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:26,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738098111] [2022-11-22 01:56:26,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738098111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:26,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:26,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:56:26,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328437509] [2022-11-22 01:56:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:26,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:26,656 INFO L87 Difference]: Start difference. First operand 7051 states and 10042 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:56:29,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:31,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:33,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:34,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:56:36,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:56:41,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:45,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:46,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:49,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:54,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:59,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:01,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:03,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:05,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:10,701 INFO L93 Difference]: Finished difference Result 13775 states and 19693 transitions. [2022-11-22 01:57:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:57:10,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2022-11-22 01:57:10,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:10,807 INFO L225 Difference]: With dead ends: 13775 [2022-11-22 01:57:10,807 INFO L226 Difference]: Without dead ends: 13773 [2022-11-22 01:57:10,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:57:10,822 INFO L413 NwaCegarLoop]: 5920 mSDtfsCounter, 5179 mSDsluCounter, 16281 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 22201 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:10,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5191 Valid, 22201 Invalid, 2928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2916 Invalid, 9 Unknown, 0 Unchecked, 43.3s Time] [2022-11-22 01:57:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13773 states. [2022-11-22 01:57:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13773 to 13764. [2022-11-22 01:57:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13764 states, 8274 states have (on average 1.3011844331641287) internal successors, (10766), 8574 states have internal predecessors, (10766), 4418 states have call successors, (4418), 1077 states have call predecessors, (4418), 1069 states have return successors, (4501), 4328 states have call predecessors, (4501), 4412 states have call successors, (4501) [2022-11-22 01:57:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13764 states to 13764 states and 19685 transitions. [2022-11-22 01:57:11,758 INFO L78 Accepts]: Start accepts. Automaton has 13764 states and 19685 transitions. Word has length 56 [2022-11-22 01:57:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:11,759 INFO L495 AbstractCegarLoop]: Abstraction has 13764 states and 19685 transitions. [2022-11-22 01:57:11,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:57:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 13764 states and 19685 transitions. [2022-11-22 01:57:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-22 01:57:11,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:11,762 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:11,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:57:11,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:11,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash 241046155, now seen corresponding path program 1 times [2022-11-22 01:57:11,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:11,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914244880] [2022-11-22 01:57:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:11,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-22 01:57:13,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:13,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914244880] [2022-11-22 01:57:13,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914244880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:13,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:13,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:57:13,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985567743] [2022-11-22 01:57:13,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:13,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:13,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:13,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:13,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:13,010 INFO L87 Difference]: Start difference. First operand 13764 states and 19685 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:57:16,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:18,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:25,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:27,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:35,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:35,121 INFO L93 Difference]: Finished difference Result 13786 states and 19706 transitions. [2022-11-22 01:57:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:57:35,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 61 [2022-11-22 01:57:35,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:35,200 INFO L225 Difference]: With dead ends: 13786 [2022-11-22 01:57:35,201 INFO L226 Difference]: Without dead ends: 13784 [2022-11-22 01:57:35,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:57:35,214 INFO L413 NwaCegarLoop]: 5257 mSDtfsCounter, 5188 mSDsluCounter, 12570 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 17827 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:35,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 17827 Invalid, 2570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2565 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2022-11-22 01:57:35,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13784 states. [2022-11-22 01:57:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13784 to 13772. [2022-11-22 01:57:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13772 states, 8280 states have (on average 1.3009661835748791) internal successors, (10772), 8580 states have internal predecessors, (10772), 4418 states have call successors, (4418), 1079 states have call predecessors, (4418), 1071 states have return successors, (4501), 4328 states have call predecessors, (4501), 4412 states have call successors, (4501) [2022-11-22 01:57:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13772 states to 13772 states and 19691 transitions. [2022-11-22 01:57:36,140 INFO L78 Accepts]: Start accepts. Automaton has 13772 states and 19691 transitions. Word has length 61 [2022-11-22 01:57:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:36,141 INFO L495 AbstractCegarLoop]: Abstraction has 13772 states and 19691 transitions. [2022-11-22 01:57:36,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:57:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13772 states and 19691 transitions. [2022-11-22 01:57:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-22 01:57:36,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:36,143 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:57:36,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:36,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1064893808, now seen corresponding path program 1 times [2022-11-22 01:57:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:36,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355802635] [2022-11-22 01:57:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-22 01:57:37,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:37,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355802635] [2022-11-22 01:57:37,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355802635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:37,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:37,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:57:37,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100916130] [2022-11-22 01:57:37,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:37,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:37,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:37,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:37,247 INFO L87 Difference]: Start difference. First operand 13772 states and 19691 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:57:41,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:44,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:46,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:52,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:54,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:56,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:58,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:05,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:08,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:58:11,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:58:13,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:58:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:15,945 INFO L93 Difference]: Finished difference Result 17085 states and 24342 transitions. [2022-11-22 01:58:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:58:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2022-11-22 01:58:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:16,039 INFO L225 Difference]: With dead ends: 17085 [2022-11-22 01:58:16,039 INFO L226 Difference]: Without dead ends: 17083 [2022-11-22 01:58:16,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:58:16,053 INFO L413 NwaCegarLoop]: 5105 mSDtfsCounter, 5206 mSDsluCounter, 12266 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5219 SdHoareTripleChecker+Valid, 17371 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:16,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5219 Valid, 17371 Invalid, 2483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2474 Invalid, 8 Unknown, 0 Unchecked, 37.8s Time] [2022-11-22 01:58:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17083 states. [2022-11-22 01:58:17,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17083 to 17073. [2022-11-22 01:58:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17073 states, 10291 states have (on average 1.3014284326110193) internal successors, (13393), 10662 states have internal predecessors, (13393), 5417 states have call successors, (5417), 1372 states have call predecessors, (5417), 1362 states have return successors, (5519), 5309 states have call predecessors, (5519), 5411 states have call successors, (5519) [2022-11-22 01:58:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17073 states to 17073 states and 24329 transitions. [2022-11-22 01:58:17,223 INFO L78 Accepts]: Start accepts. Automaton has 17073 states and 24329 transitions. Word has length 60 [2022-11-22 01:58:17,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:17,224 INFO L495 AbstractCegarLoop]: Abstraction has 17073 states and 24329 transitions. [2022-11-22 01:58:17,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:58:17,224 INFO L276 IsEmpty]: Start isEmpty. Operand 17073 states and 24329 transitions. [2022-11-22 01:58:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:58:17,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:17,226 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:17,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:58:17,226 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1795810133, now seen corresponding path program 1 times [2022-11-22 01:58:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:17,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463167862] [2022-11-22 01:58:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-22 01:58:18,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:18,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463167862] [2022-11-22 01:58:18,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463167862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:18,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:18,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:58:18,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675745587] [2022-11-22 01:58:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:18,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:18,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:18,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:18,225 INFO L87 Difference]: Start difference. First operand 17073 states and 24329 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:58:21,954 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 [] [2022-11-22 01:58:24,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:58:27,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:31,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:34,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:36,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:43,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:48,237 INFO L93 Difference]: Finished difference Result 17095 states and 24350 transitions. [2022-11-22 01:58:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:58:48,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2022-11-22 01:58:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:48,331 INFO L225 Difference]: With dead ends: 17095 [2022-11-22 01:58:48,331 INFO L226 Difference]: Without dead ends: 17093 [2022-11-22 01:58:48,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:58:48,346 INFO L413 NwaCegarLoop]: 5454 mSDtfsCounter, 5188 mSDsluCounter, 12964 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 18418 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:48,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 18418 Invalid, 2694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2687 Invalid, 6 Unknown, 0 Unchecked, 29.1s Time] [2022-11-22 01:58:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17093 states. [2022-11-22 01:58:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17093 to 17081. [2022-11-22 01:58:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17081 states, 10297 states have (on average 1.3012527920753618) internal successors, (13399), 10668 states have internal predecessors, (13399), 5417 states have call successors, (5417), 1374 states have call predecessors, (5417), 1364 states have return successors, (5519), 5309 states have call predecessors, (5519), 5411 states have call successors, (5519) [2022-11-22 01:58:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17081 states to 17081 states and 24335 transitions. [2022-11-22 01:58:49,438 INFO L78 Accepts]: Start accepts. Automaton has 17081 states and 24335 transitions. Word has length 71 [2022-11-22 01:58:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:49,438 INFO L495 AbstractCegarLoop]: Abstraction has 17081 states and 24335 transitions. [2022-11-22 01:58:49,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:58:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17081 states and 24335 transitions. [2022-11-22 01:58:49,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:58:49,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:49,440 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:49,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:58:49,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:49,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:49,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1937459614, now seen corresponding path program 1 times [2022-11-22 01:58:49,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:49,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488362258] [2022-11-22 01:58:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:49,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-22 01:58:50,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:50,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488362258] [2022-11-22 01:58:50,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488362258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:50,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:50,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:58:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106225899] [2022-11-22 01:58:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:50,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:50,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:50,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:50,516 INFO L87 Difference]: Start difference. First operand 17081 states and 24335 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:58:54,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:56,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:59:00,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:04,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:06,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:15,140 INFO L93 Difference]: Finished difference Result 17103 states and 24356 transitions. [2022-11-22 01:59:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:59:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-11-22 01:59:15,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:15,238 INFO L225 Difference]: With dead ends: 17103 [2022-11-22 01:59:15,239 INFO L226 Difference]: Without dead ends: 17101 [2022-11-22 01:59:15,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:59:15,251 INFO L413 NwaCegarLoop]: 5463 mSDtfsCounter, 5188 mSDsluCounter, 12982 mSDsCounter, 0 mSdLazyCounter, 2685 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 18445 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2685 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:15,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 18445 Invalid, 2690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2685 Invalid, 4 Unknown, 0 Unchecked, 23.7s Time] [2022-11-22 01:59:15,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17101 states. [2022-11-22 01:59:16,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17101 to 17089. [2022-11-22 01:59:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17089 states, 10303 states have (on average 1.301077356109871) internal successors, (13405), 10674 states have internal predecessors, (13405), 5417 states have call successors, (5417), 1376 states have call predecessors, (5417), 1366 states have return successors, (5519), 5309 states have call predecessors, (5519), 5411 states have call successors, (5519) [2022-11-22 01:59:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17089 states to 17089 states and 24341 transitions. [2022-11-22 01:59:16,331 INFO L78 Accepts]: Start accepts. Automaton has 17089 states and 24341 transitions. Word has length 76 [2022-11-22 01:59:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:16,332 INFO L495 AbstractCegarLoop]: Abstraction has 17089 states and 24341 transitions. [2022-11-22 01:59:16,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:59:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 17089 states and 24341 transitions. [2022-11-22 01:59:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 01:59:16,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:16,334 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:16,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:59:16,334 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:59:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash -169714819, now seen corresponding path program 1 times [2022-11-22 01:59:16,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:16,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480399883] [2022-11-22 01:59:16,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:16,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:59:17,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480399883] [2022-11-22 01:59:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480399883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:17,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:17,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:59:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760595566] [2022-11-22 01:59:17,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:17,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:17,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:59:17,370 INFO L87 Difference]: Start difference. First operand 17089 states and 24341 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:59:21,210 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 [] [2022-11-22 01:59:23,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:59:30,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:32,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:34,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:36,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:41,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:43,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:45,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:51,368 INFO L93 Difference]: Finished difference Result 17111 states and 24362 transitions. [2022-11-22 01:59:51,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:59:51,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2022-11-22 01:59:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:51,459 INFO L225 Difference]: With dead ends: 17111 [2022-11-22 01:59:51,460 INFO L226 Difference]: Without dead ends: 17109 [2022-11-22 01:59:51,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:59:51,473 INFO L413 NwaCegarLoop]: 5459 mSDtfsCounter, 5205 mSDsluCounter, 12974 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5218 SdHoareTripleChecker+Valid, 18433 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:51,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5218 Valid, 18433 Invalid, 2702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2695 Invalid, 6 Unknown, 0 Unchecked, 33.0s Time] [2022-11-22 01:59:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17109 states. [2022-11-22 01:59:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17109 to 17097. [2022-11-22 01:59:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17097 states, 10309 states have (on average 1.3009021243573577) internal successors, (13411), 10680 states have internal predecessors, (13411), 5417 states have call successors, (5417), 1378 states have call predecessors, (5417), 1368 states have return successors, (5519), 5309 states have call predecessors, (5519), 5411 states have call successors, (5519) [2022-11-22 01:59:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17097 states to 17097 states and 24347 transitions. [2022-11-22 01:59:52,631 INFO L78 Accepts]: Start accepts. Automaton has 17097 states and 24347 transitions. Word has length 75 [2022-11-22 01:59:52,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:52,631 INFO L495 AbstractCegarLoop]: Abstraction has 17097 states and 24347 transitions. [2022-11-22 01:59:52,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:59:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand 17097 states and 24347 transitions. [2022-11-22 01:59:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:59:52,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:52,641 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:52,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:59:52,641 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:59:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash 304290384, now seen corresponding path program 1 times [2022-11-22 01:59:52,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:52,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618012273] [2022-11-22 01:59:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:52,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-22 01:59:53,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:53,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618012273] [2022-11-22 01:59:53,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618012273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:53,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:53,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:59:53,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549572593] [2022-11-22 01:59:53,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:53,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:53,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:53,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:53,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:59:53,652 INFO L87 Difference]: Start difference. First operand 17097 states and 24347 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 01:59:57,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:59,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:00:04,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:08,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:10,688 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 [] [2022-11-22 02:00:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:25,087 INFO L93 Difference]: Finished difference Result 24258 states and 34714 transitions. [2022-11-22 02:00:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:00:25,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 80 [2022-11-22 02:00:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:25,233 INFO L225 Difference]: With dead ends: 24258 [2022-11-22 02:00:25,233 INFO L226 Difference]: Without dead ends: 24256 [2022-11-22 02:00:25,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:25,255 INFO L413 NwaCegarLoop]: 6587 mSDtfsCounter, 5192 mSDsluCounter, 17683 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 24270 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:25,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5204 Valid, 24270 Invalid, 3304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3297 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2022-11-22 02:00:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24256 states. [2022-11-22 02:00:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24256 to 24244. [2022-11-22 02:00:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 14558 states have (on average 1.2995603791729633) internal successors, (18919), 15084 states have internal predecessors, (18919), 7816 states have call successors, (7816), 1881 states have call predecessors, (7816), 1867 states have return successors, (7967), 7654 states have call predecessors, (7967), 7804 states have call successors, (7967) [2022-11-22 02:00:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 34702 transitions. [2022-11-22 02:00:26,963 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 34702 transitions. Word has length 80 [2022-11-22 02:00:26,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:26,964 INFO L495 AbstractCegarLoop]: Abstraction has 24244 states and 34702 transitions. [2022-11-22 02:00:26,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:00:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 34702 transitions. [2022-11-22 02:00:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 02:00:26,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:26,970 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:26,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:00:26,970 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:00:26,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:26,971 INFO L85 PathProgramCache]: Analyzing trace with hash 694601963, now seen corresponding path program 1 times [2022-11-22 02:00:26,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:26,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740922866] [2022-11-22 02:00:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-22 02:00:27,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:27,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740922866] [2022-11-22 02:00:27,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740922866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:27,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:27,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:00:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834461699] [2022-11-22 02:00:27,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:27,975 INFO L87 Difference]: Start difference. First operand 24244 states and 34702 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:00:32,043 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 [] [2022-11-22 02:00:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:00:39,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:43,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:45,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:47,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:49,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:51,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:57,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:06,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:01:06,217 INFO L93 Difference]: Finished difference Result 24266 states and 34720 transitions. [2022-11-22 02:01:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:01:06,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-11-22 02:01:06,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:01:06,339 INFO L225 Difference]: With dead ends: 24266 [2022-11-22 02:01:06,339 INFO L226 Difference]: Without dead ends: 24264 [2022-11-22 02:01:06,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:01:06,361 INFO L413 NwaCegarLoop]: 6587 mSDtfsCounter, 5188 mSDsluCounter, 17683 mSDsCounter, 0 mSdLazyCounter, 3298 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5199 SdHoareTripleChecker+Valid, 24270 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3298 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:01:06,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5199 Valid, 24270 Invalid, 3308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3298 Invalid, 8 Unknown, 0 Unchecked, 36.7s Time] [2022-11-22 02:01:06,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24264 states. [2022-11-22 02:01:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24264 to 24252. [2022-11-22 02:01:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24252 states, 14564 states have (on average 1.299436967865971) internal successors, (18925), 15090 states have internal predecessors, (18925), 7816 states have call successors, (7816), 1883 states have call predecessors, (7816), 1869 states have return successors, (7967), 7654 states have call predecessors, (7967), 7804 states have call successors, (7967) [2022-11-22 02:01:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24252 states to 24252 states and 34708 transitions. [2022-11-22 02:01:08,003 INFO L78 Accepts]: Start accepts. Automaton has 24252 states and 34708 transitions. Word has length 91 [2022-11-22 02:01:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:01:08,004 INFO L495 AbstractCegarLoop]: Abstraction has 24252 states and 34708 transitions. [2022-11-22 02:01:08,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:01:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 24252 states and 34708 transitions. [2022-11-22 02:01:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 02:01:08,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:08,007 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:01:08,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:01:08,007 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:01:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:08,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1854395856, now seen corresponding path program 1 times [2022-11-22 02:01:08,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:08,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999858274] [2022-11-22 02:01:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:08,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-22 02:01:09,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:09,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999858274] [2022-11-22 02:01:09,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999858274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:09,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:09,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:01:09,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986910151] [2022-11-22 02:01:09,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:09,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:01:09,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:01:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:01:09,147 INFO L87 Difference]: Start difference. First operand 24252 states and 34708 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:01:14,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:16,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:01:21,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:25,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:27,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:29,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:31,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:33,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:41,643 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 [] [2022-11-22 02:01:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:01:48,492 INFO L93 Difference]: Finished difference Result 24282 states and 34737 transitions. [2022-11-22 02:01:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:01:48,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-11-22 02:01:48,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:01:48,612 INFO L225 Difference]: With dead ends: 24282 [2022-11-22 02:01:48,612 INFO L226 Difference]: Without dead ends: 24280 [2022-11-22 02:01:48,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:01:48,628 INFO L413 NwaCegarLoop]: 5437 mSDtfsCounter, 5192 mSDsluCounter, 12930 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 18367 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:01:48,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 18367 Invalid, 2691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2682 Invalid, 8 Unknown, 0 Unchecked, 37.3s Time] [2022-11-22 02:01:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24280 states. [2022-11-22 02:01:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24280 to 24274. [2022-11-22 02:01:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24274 states, 14580 states have (on average 1.2991083676268862) internal successors, (18941), 15106 states have internal predecessors, (18941), 7816 states have call successors, (7816), 1887 states have call predecessors, (7816), 1875 states have return successors, (7971), 7656 states have call predecessors, (7971), 7804 states have call successors, (7971) [2022-11-22 02:01:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24274 states to 24274 states and 34728 transitions. [2022-11-22 02:01:50,774 INFO L78 Accepts]: Start accepts. Automaton has 24274 states and 34728 transitions. Word has length 90 [2022-11-22 02:01:50,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:01:50,774 INFO L495 AbstractCegarLoop]: Abstraction has 24274 states and 34728 transitions. [2022-11-22 02:01:50,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:01:50,775 INFO L276 IsEmpty]: Start isEmpty. Operand 24274 states and 34728 transitions. [2022-11-22 02:01:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:01:50,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:50,777 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:01:50,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:01:50,777 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:01:50,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:50,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1512794891, now seen corresponding path program 1 times [2022-11-22 02:01:50,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:50,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337834731] [2022-11-22 02:01:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:51,698 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-22 02:01:51,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:51,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337834731] [2022-11-22 02:01:51,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337834731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:51,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:51,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:01:51,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288420707] [2022-11-22 02:01:51,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:51,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:01:51,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:51,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:01:51,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:01:51,701 INFO L87 Difference]: Start difference. First operand 24274 states and 34728 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-22 02:01:55,387 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 [] [2022-11-22 02:01:57,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:02:02,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:06,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:08,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:21,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:21,356 INFO L93 Difference]: Finished difference Result 24298 states and 34749 transitions. [2022-11-22 02:02:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:02:21,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 101 [2022-11-22 02:02:21,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:21,456 INFO L225 Difference]: With dead ends: 24298 [2022-11-22 02:02:21,456 INFO L226 Difference]: Without dead ends: 24296 [2022-11-22 02:02:21,466 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 [2022-11-22 02:02:21,466 INFO L413 NwaCegarLoop]: 5436 mSDtfsCounter, 5188 mSDsluCounter, 12928 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 18364 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:21,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 18364 Invalid, 2687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2682 Invalid, 4 Unknown, 0 Unchecked, 27.9s Time] [2022-11-22 02:02:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24296 states. [2022-11-22 02:02:22,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24296 to 24290. [2022-11-22 02:02:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24290 states, 14592 states have (on average 1.2988623903508771) internal successors, (18953), 15118 states have internal predecessors, (18953), 7816 states have call successors, (7816), 1891 states have call predecessors, (7816), 1879 states have return successors, (7971), 7656 states have call predecessors, (7971), 7804 states have call successors, (7971) [2022-11-22 02:02:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24290 states to 24290 states and 34740 transitions. [2022-11-22 02:02:22,987 INFO L78 Accepts]: Start accepts. Automaton has 24290 states and 34740 transitions. Word has length 101 [2022-11-22 02:02:22,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:22,988 INFO L495 AbstractCegarLoop]: Abstraction has 24290 states and 34740 transitions. [2022-11-22 02:02:22,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-22 02:02:22,988 INFO L276 IsEmpty]: Start isEmpty. Operand 24290 states and 34740 transitions. [2022-11-22 02:02:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 02:02:22,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:22,991 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:22,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:02:22,991 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:02:22,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:22,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2129654402, now seen corresponding path program 1 times [2022-11-22 02:02:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:22,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826639933] [2022-11-22 02:02:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-22 02:02:24,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:24,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826639933] [2022-11-22 02:02:24,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826639933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:24,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:24,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:02:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997786354] [2022-11-22 02:02:24,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:24,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:24,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:24,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:24,089 INFO L87 Difference]: Start difference. First operand 24290 states and 34740 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-22 02:02:27,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:29,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:02:37,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:39,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:47,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:51,611 INFO L93 Difference]: Finished difference Result 24314 states and 34761 transitions. [2022-11-22 02:02:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:02:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 106 [2022-11-22 02:02:51,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:51,690 INFO L225 Difference]: With dead ends: 24314 [2022-11-22 02:02:51,690 INFO L226 Difference]: Without dead ends: 24312 [2022-11-22 02:02:51,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:51,702 INFO L413 NwaCegarLoop]: 5436 mSDtfsCounter, 5188 mSDsluCounter, 12928 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 18364 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:51,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 18364 Invalid, 2687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2682 Invalid, 4 Unknown, 0 Unchecked, 25.6s Time] [2022-11-22 02:02:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24312 states. [2022-11-22 02:02:53,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24312 to 24306. [2022-11-22 02:02:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24306 states, 14604 states have (on average 1.2986168173103259) internal successors, (18965), 15130 states have internal predecessors, (18965), 7816 states have call successors, (7816), 1895 states have call predecessors, (7816), 1883 states have return successors, (7971), 7656 states have call predecessors, (7971), 7804 states have call successors, (7971) [2022-11-22 02:02:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24306 states to 24306 states and 34752 transitions. [2022-11-22 02:02:53,330 INFO L78 Accepts]: Start accepts. Automaton has 24306 states and 34752 transitions. Word has length 106 [2022-11-22 02:02:53,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:53,330 INFO L495 AbstractCegarLoop]: Abstraction has 24306 states and 34752 transitions. [2022-11-22 02:02:53,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-22 02:02:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 24306 states and 34752 transitions. [2022-11-22 02:02:53,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 02:02:53,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:53,333 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:53,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:02:53,333 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:02:53,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:53,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1825341021, now seen corresponding path program 1 times [2022-11-22 02:02:53,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:53,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673057500] [2022-11-22 02:02:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:53,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-22 02:02:54,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:54,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673057500] [2022-11-22 02:02:54,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673057500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:54,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:02:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019238062] [2022-11-22 02:02:54,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:54,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:54,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:54,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:54,126 INFO L87 Difference]: Start difference. First operand 24306 states and 34752 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:02:57,776 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 [] [2022-11-22 02:02:59,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:03:05,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:09,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:11,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:15,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:17,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:24,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:33,557 INFO L93 Difference]: Finished difference Result 31539 states and 45174 transitions. [2022-11-22 02:03:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:03:33,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 105 [2022-11-22 02:03:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:33,660 INFO L225 Difference]: With dead ends: 31539 [2022-11-22 02:03:33,660 INFO L226 Difference]: Without dead ends: 31535 [2022-11-22 02:03:33,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:33,672 INFO L413 NwaCegarLoop]: 6574 mSDtfsCounter, 5132 mSDsluCounter, 17653 mSDsCounter, 0 mSdLazyCounter, 3294 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5139 SdHoareTripleChecker+Valid, 24227 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3294 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:33,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5139 Valid, 24227 Invalid, 3305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3294 Invalid, 8 Unknown, 0 Unchecked, 36.6s Time] [2022-11-22 02:03:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31535 states. [2022-11-22 02:03:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31535 to 31521. [2022-11-22 02:03:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31521 states, 18899 states have (on average 1.2977406211968887) internal successors, (24526), 19579 states have internal predecessors, (24526), 10213 states have call successors, (10213), 2423 states have call predecessors, (10213), 2406 states have return successors, (10417), 9999 states have call predecessors, (10417), 10195 states have call successors, (10417) [2022-11-22 02:03:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31521 states to 31521 states and 45156 transitions. [2022-11-22 02:03:35,922 INFO L78 Accepts]: Start accepts. Automaton has 31521 states and 45156 transitions. Word has length 105 [2022-11-22 02:03:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:35,922 INFO L495 AbstractCegarLoop]: Abstraction has 31521 states and 45156 transitions. [2022-11-22 02:03:35,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:03:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 31521 states and 45156 transitions. [2022-11-22 02:03:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-22 02:03:35,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:35,925 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:35,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:03:35,925 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:03:35,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:35,926 INFO L85 PathProgramCache]: Analyzing trace with hash -517320208, now seen corresponding path program 1 times [2022-11-22 02:03:35,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:35,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152953267] [2022-11-22 02:03:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:35,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-11-22 02:03:36,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:36,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152953267] [2022-11-22 02:03:36,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152953267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:36,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:36,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:03:36,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795744505] [2022-11-22 02:03:36,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:36,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:03:36,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:03:36,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:36,665 INFO L87 Difference]: Start difference. First operand 31521 states and 45156 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:03:40,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:42,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:03:51,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:53,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:55,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:57,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:59,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:05,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:08,388 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 [] [2022-11-22 02:04:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:14,973 INFO L93 Difference]: Finished difference Result 31549 states and 45181 transitions. [2022-11-22 02:04:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:04:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) Word has length 110 [2022-11-22 02:04:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:15,106 INFO L225 Difference]: With dead ends: 31549 [2022-11-22 02:04:15,106 INFO L226 Difference]: Without dead ends: 31303 [2022-11-22 02:04:15,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:15,123 INFO L413 NwaCegarLoop]: 5438 mSDtfsCounter, 5205 mSDsluCounter, 12932 mSDsCounter, 0 mSdLazyCounter, 2685 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 18370 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2685 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:15,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 18370 Invalid, 2693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2685 Invalid, 7 Unknown, 0 Unchecked, 35.8s Time] [2022-11-22 02:04:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31303 states. [2022-11-22 02:04:17,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31303 to 31297. [2022-11-22 02:04:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31297 states, 18768 states have (on average 1.2993393009377665) internal successors, (24386), 19446 states have internal predecessors, (24386), 10155 states have call successors, (10155), 2387 states have call predecessors, (10155), 2371 states have return successors, (10362), 9944 states have call predecessors, (10362), 10140 states have call successors, (10362) [2022-11-22 02:04:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31297 states to 31297 states and 44903 transitions. [2022-11-22 02:04:17,578 INFO L78 Accepts]: Start accepts. Automaton has 31297 states and 44903 transitions. Word has length 110 [2022-11-22 02:04:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:17,578 INFO L495 AbstractCegarLoop]: Abstraction has 31297 states and 44903 transitions. [2022-11-22 02:04:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:04:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 31297 states and 44903 transitions. [2022-11-22 02:04:17,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-22 02:04:17,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:17,603 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:17,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:04:17,603 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:04:17,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:17,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1451283875, now seen corresponding path program 1 times [2022-11-22 02:04:17,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:17,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970724002] [2022-11-22 02:04:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-22 02:04:19,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:19,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970724002] [2022-11-22 02:04:19,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970724002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:19,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:19,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:04:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640120004] [2022-11-22 02:04:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:04:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:04:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:04:19,382 INFO L87 Difference]: Start difference. First operand 31297 states and 44903 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 02:04:23,202 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 [] [2022-11-22 02:04:25,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:04:30,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:32,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:37,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:39,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:44,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:52,647 INFO L93 Difference]: Finished difference Result 62680 states and 90778 transitions. [2022-11-22 02:04:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:04:52,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 252 [2022-11-22 02:04:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:52,827 INFO L225 Difference]: With dead ends: 62680 [2022-11-22 02:04:52,827 INFO L226 Difference]: Without dead ends: 31397 [2022-11-22 02:04:53,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:04:53,025 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 5 mSDsluCounter, 13622 mSDsCounter, 0 mSdLazyCounter, 2825 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18173 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2825 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:53,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18173 Invalid, 2832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2825 Invalid, 4 Unknown, 0 Unchecked, 30.0s Time] [2022-11-22 02:04:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31397 states. [2022-11-22 02:04:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31397 to 31345. [2022-11-22 02:04:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31345 states, 18804 states have (on average 1.2987662199532015) internal successors, (24422), 19482 states have internal predecessors, (24422), 10155 states have call successors, (10155), 2387 states have call predecessors, (10155), 2383 states have return successors, (10538), 9956 states have call predecessors, (10538), 10140 states have call successors, (10538) [2022-11-22 02:04:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31345 states to 31345 states and 45115 transitions. [2022-11-22 02:04:56,157 INFO L78 Accepts]: Start accepts. Automaton has 31345 states and 45115 transitions. Word has length 252 [2022-11-22 02:04:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:56,158 INFO L495 AbstractCegarLoop]: Abstraction has 31345 states and 45115 transitions. [2022-11-22 02:04:56,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 02:04:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 31345 states and 45115 transitions. [2022-11-22 02:04:56,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-22 02:04:56,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:56,176 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:56,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:04:56,177 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:04:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2077314876, now seen corresponding path program 1 times [2022-11-22 02:04:56,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:56,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893000141] [2022-11-22 02:04:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-22 02:04:58,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:58,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893000141] [2022-11-22 02:04:58,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893000141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:58,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:58,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:04:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261700801] [2022-11-22 02:04:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:58,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:04:58,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:58,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:04:58,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:04:58,323 INFO L87 Difference]: Start difference. First operand 31345 states and 45115 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-22 02:05:01,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:04,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:05,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:13,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:15,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:27,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:27,723 INFO L93 Difference]: Finished difference Result 31513 states and 45313 transitions. [2022-11-22 02:05:27,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:05:27,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 257 [2022-11-22 02:05:27,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:27,868 INFO L225 Difference]: With dead ends: 31513 [2022-11-22 02:05:27,869 INFO L226 Difference]: Without dead ends: 31511 [2022-11-22 02:05:27,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:27,889 INFO L413 NwaCegarLoop]: 5559 mSDtfsCounter, 5070 mSDsluCounter, 13244 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5077 SdHoareTripleChecker+Valid, 18803 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:27,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5077 Valid, 18803 Invalid, 2807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2801 Invalid, 4 Unknown, 0 Unchecked, 26.8s Time] [2022-11-22 02:05:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31511 states. [2022-11-22 02:05:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31511 to 31501. [2022-11-22 02:05:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31501 states, 18906 states have (on average 1.2987940336401143) internal successors, (24555), 19584 states have internal predecessors, (24555), 10181 states have call successors, (10181), 2415 states have call predecessors, (10181), 2411 states have return successors, (10562), 9982 states have call predecessors, (10562), 10166 states have call successors, (10562) [2022-11-22 02:05:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31501 states to 31501 states and 45298 transitions. [2022-11-22 02:05:30,506 INFO L78 Accepts]: Start accepts. Automaton has 31501 states and 45298 transitions. Word has length 257 [2022-11-22 02:05:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:30,507 INFO L495 AbstractCegarLoop]: Abstraction has 31501 states and 45298 transitions. [2022-11-22 02:05:30,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-22 02:05:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 31501 states and 45298 transitions. [2022-11-22 02:05:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-22 02:05:30,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:30,529 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:30,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:05:30,530 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:05:30,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:30,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1257555596, now seen corresponding path program 1 times [2022-11-22 02:05:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:30,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225050099] [2022-11-22 02:05:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:30,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:31,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:31,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225050099] [2022-11-22 02:05:31,057 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 02:05:31,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836845551] [2022-11-22 02:05:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:31,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:05:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:05:31,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:05:31,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:05:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:34,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 10432 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:05:34,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-22 02:05:35,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:35,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836845551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:35,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:35,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:05:35,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636692310] [2022-11-22 02:05:35,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:35,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:05:35,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:35,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:05:35,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:05:35,140 INFO L87 Difference]: Start difference. First operand 31501 states and 45298 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 8 states have internal predecessors, (137), 2 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (46), 5 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-22 02:05:40,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:41,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:43,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:45,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:47,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:49,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:51,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:53,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:55,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:58,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:00,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:10,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:12,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:15,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:17,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:19,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:25,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:28,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:30,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:32,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:34,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:36,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:37,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:39,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:41,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:48,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:54,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:10,285 INFO L93 Difference]: Finished difference Result 63116 states and 91474 transitions. [2022-11-22 02:07:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:07:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 8 states have internal predecessors, (137), 2 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (46), 5 states have call predecessors, (46), 2 states have call successors, (46) Word has length 284 [2022-11-22 02:07:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:10,424 INFO L225 Difference]: With dead ends: 63116 [2022-11-22 02:07:10,425 INFO L226 Difference]: Without dead ends: 31629 [2022-11-22 02:07:10,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:07:10,543 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 6 mSDsluCounter, 41053 mSDsCounter, 0 mSdLazyCounter, 7077 mSolverCounterSat, 2 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45620 SdHoareTripleChecker+Invalid, 7098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7077 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:10,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 45620 Invalid, 7098 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 7077 Invalid, 19 Unknown, 0 Unchecked, 92.2s Time] [2022-11-22 02:07:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31629 states. [2022-11-22 02:07:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31629 to 31621. [2022-11-22 02:07:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31621 states, 18990 states have (on average 1.2968404423380726) internal successors, (24627), 19680 states have internal predecessors, (24627), 10181 states have call successors, (10181), 2415 states have call predecessors, (10181), 2447 states have return successors, (10652), 10006 states have call predecessors, (10652), 10166 states have call successors, (10652) [2022-11-22 02:07:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31621 states to 31621 states and 45460 transitions. [2022-11-22 02:07:13,050 INFO L78 Accepts]: Start accepts. Automaton has 31621 states and 45460 transitions. Word has length 284 [2022-11-22 02:07:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:13,050 INFO L495 AbstractCegarLoop]: Abstraction has 31621 states and 45460 transitions. [2022-11-22 02:07:13,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 8 states have internal predecessors, (137), 2 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (46), 5 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-22 02:07:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 31621 states and 45460 transitions. [2022-11-22 02:07:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-22 02:07:13,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:13,074 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:13,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:07:13,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:07:13,288 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:07:13,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:13,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2010267456, now seen corresponding path program 1 times [2022-11-22 02:07:13,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:13,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763708988] [2022-11-22 02:07:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:13,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:13,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:13,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763708988] [2022-11-22 02:07:13,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 02:07:13,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400943902] [2022-11-22 02:07:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:13,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:07:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:07:13,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:07:14,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:07:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:17,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 9666 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:07:17,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-22 02:07:17,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:07:17,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400943902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:17,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:17,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:07:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293944216] [2022-11-22 02:07:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:17,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:17,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:17,533 INFO L87 Difference]: Start difference. First operand 31621 states and 45460 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 02:07:20,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:22,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:29,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:31,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:37,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:37,982 INFO L93 Difference]: Finished difference Result 63324 states and 91748 transitions. [2022-11-22 02:07:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:37,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 301 [2022-11-22 02:07:37,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:38,110 INFO L225 Difference]: With dead ends: 63324 [2022-11-22 02:07:38,110 INFO L226 Difference]: Without dead ends: 31717 [2022-11-22 02:07:38,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:38,210 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 5 mSDsluCounter, 4546 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9099 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:38,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9099 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1403 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2022-11-22 02:07:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31717 states. [2022-11-22 02:07:40,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31717 to 31633. [2022-11-22 02:07:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31633 states, 19002 states have (on average 1.296652983896432) internal successors, (24639), 19692 states have internal predecessors, (24639), 10181 states have call successors, (10181), 2415 states have call predecessors, (10181), 2447 states have return successors, (10652), 10006 states have call predecessors, (10652), 10166 states have call successors, (10652) [2022-11-22 02:07:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31633 states to 31633 states and 45472 transitions. [2022-11-22 02:07:40,890 INFO L78 Accepts]: Start accepts. Automaton has 31633 states and 45472 transitions. Word has length 301 [2022-11-22 02:07:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:40,891 INFO L495 AbstractCegarLoop]: Abstraction has 31633 states and 45472 transitions. [2022-11-22 02:07:40,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 02:07:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 31633 states and 45472 transitions. [2022-11-22 02:07:40,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-22 02:07:40,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:40,911 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:40,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:07:41,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195f81ed-8f61-4dcc-bfff-f47cc09e46ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-11-22 02:07:41,112 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:07:41,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1667527830, now seen corresponding path program 1 times [2022-11-22 02:07:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:41,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432304316] [2022-11-22 02:07:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:41,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-11-22 02:07:42,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:42,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432304316] [2022-11-22 02:07:42,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432304316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:42,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:42,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:07:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634811036] [2022-11-22 02:07:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:42,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:07:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:07:42,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:07:42,629 INFO L87 Difference]: Start difference. First operand 31633 states and 45472 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-22 02:07:46,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:49,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []