./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/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_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/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_bb20c234-cb86-405b-be26-6e1b38b09db6/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 adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 --- 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 01:45:46,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:45:46,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:45:46,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:45:46,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:45:46,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:45:46,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:45:46,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:45:46,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:45:46,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:45:46,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:45:46,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:45:46,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:45:46,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:45:46,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:45:46,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:45:46,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:45:46,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:45:46,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:45:46,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:45:46,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:45:46,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:45:46,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:45:46,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:45:46,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:45:46,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:45:46,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:45:46,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:45:46,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:45:46,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:45:46,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:45:46,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:45:46,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:45:46,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:45:46,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:45:46,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:45:46,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:45:46,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:45:46,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:45:46,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:45:46,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:45:46,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:45:46,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:45:46,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:45:46,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:45:46,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:45:46,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:45:46,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:45:46,137 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:45:46,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:45:46,137 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:45:46,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:45:46,139 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:45:46,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:45:46,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:45:46,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:45:46,140 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:45:46,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:45:46,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:45:46,141 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:45:46,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:45:46,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:45:46,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:45:46,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:45:46,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:45:46,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:45:46,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:45:46,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:45:46,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:45:46,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:45:46,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:45:46,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:46,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:45:46,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:45:46,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:45:46,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:45:46,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:45:46,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:45:46,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:45:46,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:45:46,147 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_bb20c234-cb86-405b-be26-6e1b38b09db6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2022-11-22 01:45:46,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:45:46,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:45:46,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:45:46,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:45:46,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:45:46,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-22 01:45:49,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:45:50,244 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:45:50,245 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-22 01:45:50,293 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/data/b6e5772cd/426b518ca99e452eb20ba0e0251c1009/FLAG0c1f8ec89 [2022-11-22 01:45:50,310 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/data/b6e5772cd/426b518ca99e452eb20ba0e0251c1009 [2022-11-22 01:45:50,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:45:50,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:45:50,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:50,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:45:50,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:45:50,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:50" (1/1) ... [2022-11-22 01:45:50,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329f7997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:50, skipping insertion in model container [2022-11-22 01:45:50,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:50" (1/1) ... [2022-11-22 01:45:50,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:45:50,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:45:53,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2022-11-22 01:45:53,047 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2022-11-22 01:45:53,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2022-11-22 01:45:53,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2022-11-22 01:45:53,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:53,114 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:45:53,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2022-11-22 01:45:53,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2022-11-22 01:45:53,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2022-11-22 01:45:53,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2022-11-22 01:45:53,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:53,783 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:45:53,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53 WrapperNode [2022-11-22 01:45:53,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:53,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:53,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:45:53,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:45:53,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:53,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,032 INFO L138 Inliner]: procedures = 396, calls = 1621, calls flagged for inlining = 229, calls inlined = 191, statements flattened = 4079 [2022-11-22 01:45:54,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:54,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:45:54,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:45:54,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:45:54,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,278 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:45:54,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:45:54,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:45:54,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:45:54,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (1/1) ... [2022-11-22 01:45:54,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:54,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:54,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:45:54,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:45:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:45:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:45:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:45:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:45:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2022-11-22 01:45:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2022-11-22 01:45:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:45:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:45:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2022-11-22 01:45:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2022-11-22 01:45:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:45:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:45:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-22 01:45:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-22 01:45:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 01:45:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2022-11-22 01:45:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2022-11-22 01:45:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:45:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:45:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:45:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:45:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:45:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:45:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:45:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:45:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:45:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:45:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:45:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-22 01:45:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-22 01:45:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:45:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:45:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:45:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:45:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:45:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:45:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:45:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:45:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-22 01:45:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-22 01:45:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:45:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:45:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:45:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2022-11-22 01:45:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2022-11-22 01:45:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:45:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:45:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:45:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:45:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_ks8851_net [2022-11-22 01:45:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_ks8851_net [2022-11-22 01:45:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2022-11-22 01:45:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2022-11-22 01:45:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:45:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:45:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:45:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:45:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:45:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 01:45:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 01:45:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 01:45:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 01:45:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2022-11-22 01:45:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2022-11-22 01:45:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:45:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:45:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:45:54,445 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_probe [2022-11-22 01:45:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_probe [2022-11-22 01:45:54,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:45:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:45:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:45:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:45:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:45:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:45:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:45:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:45:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:45:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_put [2022-11-22 01:45:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_put [2022-11-22 01:45:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_ks8851_net [2022-11-22 01:45:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_ks8851_net [2022-11-22 01:45:54,449 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:45:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:45:54,449 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:45:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:45:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2022-11-22 01:45:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2022-11-22 01:45:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:45:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:45:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2022-11-22 01:45:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2022-11-22 01:45:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:45:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:45:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:45:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:45:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-22 01:45:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-22 01:45:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:45:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:45:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:45:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:45:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2022-11-22 01:45:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2022-11-22 01:45:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-22 01:45:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-22 01:45:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:45:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:45:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:45:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:45:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 01:45:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 01:45:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 01:45:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 01:45:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2022-11-22 01:45:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2022-11-22 01:45:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:45:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:45:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:45:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:45:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:45:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2022-11-22 01:45:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2022-11-22 01:45:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:45:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:45:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:45:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:45:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 01:45:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 01:45:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:45:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:45:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:45:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:45:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:45:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:45:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:45:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:45:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:45:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:45:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:45:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:45:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:45:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:45:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2022-11-22 01:45:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2022-11-22 01:45:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_get_eeprom_len [2022-11-22 01:45:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_get_eeprom_len [2022-11-22 01:45:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2022-11-22 01:45:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2022-11-22 01:45:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:45:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:45:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:45:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:45:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:45:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2022-11-22 01:45:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2022-11-22 01:45:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_nway_reset [2022-11-22 01:45:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_nway_reset [2022-11-22 01:45:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-22 01:45:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-22 01:45:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_remove [2022-11-22 01:45:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_remove [2022-11-22 01:45:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:45:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:45:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:45:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:45:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2022-11-22 01:45:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2022-11-22 01:45:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:45:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:45:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:45:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:45:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:45:55,264 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:45:55,268 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:45:56,487 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:45:58,918 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:45:59,117 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:46:00,278 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:46:00,278 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:46:00,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:00 BoogieIcfgContainer [2022-11-22 01:46:00,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:46:00,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:46:00,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:46:00,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:46:00,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:45:50" (1/3) ... [2022-11-22 01:46:00,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2aa48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:00, skipping insertion in model container [2022-11-22 01:46:00,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:53" (2/3) ... [2022-11-22 01:46:00,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2aa48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:00, skipping insertion in model container [2022-11-22 01:46:00,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:00" (3/3) ... [2022-11-22 01:46:00,292 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-22 01:46:00,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:46:00,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:46:00,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:46:00,404 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;@1be9e061, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:46:00,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:46:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 1118 states, 674 states have (on average 1.3293768545994065) internal successors, (896), 687 states have internal predecessors, (896), 366 states have call successors, (366), 78 states have call predecessors, (366), 77 states have return successors, (357), 356 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-22 01:46:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-22 01:46:00,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:00,436 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:00,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:00,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1225836798, now seen corresponding path program 1 times [2022-11-22 01:46:00,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:00,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200574271] [2022-11-22 01:46:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:00,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-22 01:46:01,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:01,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200574271] [2022-11-22 01:46:01,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200574271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:01,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:01,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:01,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062042126] [2022-11-22 01:46:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:01,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:01,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:01,516 INFO L87 Difference]: Start difference. First operand has 1118 states, 674 states have (on average 1.3293768545994065) internal successors, (896), 687 states have internal predecessors, (896), 366 states have call successors, (366), 78 states have call predecessors, (366), 77 states have return successors, (357), 356 states have call predecessors, (357), 357 states have call successors, (357) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:46:06,367 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 01:46:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:06,524 INFO L93 Difference]: Finished difference Result 3137 states and 4728 transitions. [2022-11-22 01:46:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:06,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 191 [2022-11-22 01:46:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:06,562 INFO L225 Difference]: With dead ends: 3137 [2022-11-22 01:46:06,562 INFO L226 Difference]: Without dead ends: 2036 [2022-11-22 01:46:06,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:06,581 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1412 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:06,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 2954 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:46:06,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2022-11-22 01:46:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2017. [2022-11-22 01:46:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1219 states have (on average 1.3264971287940934) internal successors, (1617), 1245 states have internal predecessors, (1617), 646 states have call successors, (646), 152 states have call predecessors, (646), 149 states have return successors, (684), 631 states have call predecessors, (684), 642 states have call successors, (684) [2022-11-22 01:46:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2947 transitions. [2022-11-22 01:46:06,882 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2947 transitions. Word has length 191 [2022-11-22 01:46:06,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,883 INFO L495 AbstractCegarLoop]: Abstraction has 2017 states and 2947 transitions. [2022-11-22 01:46:06,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:46:06,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2947 transitions. [2022-11-22 01:46:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-22 01:46:06,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,889 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:46:06,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1803085626, now seen corresponding path program 1 times [2022-11-22 01:46:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319049814] [2022-11-22 01:46:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-22 01:46:07,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:07,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319049814] [2022-11-22 01:46:07,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319049814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:07,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:07,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:07,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695654476] [2022-11-22 01:46:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:07,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:07,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:07,263 INFO L87 Difference]: Start difference. First operand 2017 states and 2947 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:46:09,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:11,998 INFO L93 Difference]: Finished difference Result 5894 states and 8610 transitions. [2022-11-22 01:46:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 195 [2022-11-22 01:46:12,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:12,028 INFO L225 Difference]: With dead ends: 5894 [2022-11-22 01:46:12,029 INFO L226 Difference]: Without dead ends: 3912 [2022-11-22 01:46:12,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:12,042 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 1460 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:12,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 2862 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 01:46:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-11-22 01:46:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3908. [2022-11-22 01:46:12,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 2380 states have (on average 1.3256302521008403) internal successors, (3155), 2424 states have internal predecessors, (3155), 1230 states have call successors, (1230), 300 states have call predecessors, (1230), 295 states have return successors, (1310), 1207 states have call predecessors, (1310), 1226 states have call successors, (1310) [2022-11-22 01:46:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5695 transitions. [2022-11-22 01:46:12,361 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5695 transitions. Word has length 195 [2022-11-22 01:46:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:12,364 INFO L495 AbstractCegarLoop]: Abstraction has 3908 states and 5695 transitions. [2022-11-22 01:46:12,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:46:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5695 transitions. [2022-11-22 01:46:12,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-22 01:46:12,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:12,373 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:12,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:46:12,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:12,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:12,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1364391516, now seen corresponding path program 1 times [2022-11-22 01:46:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:12,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604232781] [2022-11-22 01:46:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-22 01:46:12,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:12,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604232781] [2022-11-22 01:46:12,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604232781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:12,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:12,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:12,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289914196] [2022-11-22 01:46:12,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:12,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:12,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:12,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:12,725 INFO L87 Difference]: Start difference. First operand 3908 states and 5695 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:46:15,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:17,891 INFO L93 Difference]: Finished difference Result 11218 states and 16269 transitions. [2022-11-22 01:46:17,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2022-11-22 01:46:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:17,943 INFO L225 Difference]: With dead ends: 11218 [2022-11-22 01:46:17,943 INFO L226 Difference]: Without dead ends: 7345 [2022-11-22 01:46:17,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:17,966 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1320 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:17,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 2818 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:46:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2022-11-22 01:46:18,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7320. [2022-11-22 01:46:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 4424 states have (on average 1.3049276672694394) internal successors, (5773), 4518 states have internal predecessors, (5773), 2308 states have call successors, (2308), 594 states have call predecessors, (2308), 585 states have return successors, (2408), 2255 states have call predecessors, (2408), 2304 states have call successors, (2408) [2022-11-22 01:46:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 10489 transitions. [2022-11-22 01:46:18,456 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 10489 transitions. Word has length 195 [2022-11-22 01:46:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:18,458 INFO L495 AbstractCegarLoop]: Abstraction has 7320 states and 10489 transitions. [2022-11-22 01:46:18,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:46:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 10489 transitions. [2022-11-22 01:46:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-22 01:46:18,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:18,463 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:18,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:46:18,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1505901550, now seen corresponding path program 1 times [2022-11-22 01:46:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:18,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369946021] [2022-11-22 01:46:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-22 01:46:18,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:18,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369946021] [2022-11-22 01:46:18,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369946021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:18,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:18,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:18,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999901149] [2022-11-22 01:46:18,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:18,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:18,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:18,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:18,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:18,742 INFO L87 Difference]: Start difference. First operand 7320 states and 10489 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:46:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:23,456 INFO L93 Difference]: Finished difference Result 17654 states and 25223 transitions. [2022-11-22 01:46:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 196 [2022-11-22 01:46:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:23,529 INFO L225 Difference]: With dead ends: 17654 [2022-11-22 01:46:23,529 INFO L226 Difference]: Without dead ends: 10369 [2022-11-22 01:46:23,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:23,574 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 1414 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:23,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 2875 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 01:46:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-11-22 01:46:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 10344. [2022-11-22 01:46:24,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10344 states, 6230 states have (on average 1.2906902086677368) internal successors, (8041), 6380 states have internal predecessors, (8041), 3248 states have call successors, (3248), 876 states have call predecessors, (3248), 863 states have return successors, (3392), 3155 states have call predecessors, (3392), 3244 states have call successors, (3392) [2022-11-22 01:46:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10344 states to 10344 states and 14681 transitions. [2022-11-22 01:46:24,355 INFO L78 Accepts]: Start accepts. Automaton has 10344 states and 14681 transitions. Word has length 196 [2022-11-22 01:46:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:24,356 INFO L495 AbstractCegarLoop]: Abstraction has 10344 states and 14681 transitions. [2022-11-22 01:46:24,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:46:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10344 states and 14681 transitions. [2022-11-22 01:46:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-22 01:46:24,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:24,362 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:24,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:46:24,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:24,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash 717326826, now seen corresponding path program 1 times [2022-11-22 01:46:24,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:24,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399965212] [2022-11-22 01:46:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:24,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-11-22 01:46:24,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:24,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399965212] [2022-11-22 01:46:24,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399965212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:24,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:24,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524927083] [2022-11-22 01:46:24,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:24,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:24,665 INFO L87 Difference]: Start difference. First operand 10344 states and 14681 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:46:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:29,585 INFO L93 Difference]: Finished difference Result 27454 states and 38947 transitions. [2022-11-22 01:46:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:29,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 219 [2022-11-22 01:46:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:29,713 INFO L225 Difference]: With dead ends: 27454 [2022-11-22 01:46:29,714 INFO L226 Difference]: Without dead ends: 17145 [2022-11-22 01:46:29,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:29,767 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1464 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:29,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 3014 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 01:46:29,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17145 states. [2022-11-22 01:46:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17145 to 17114. [2022-11-22 01:46:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17114 states, 10344 states have (on average 1.2876063418406807) internal successors, (13319), 10606 states have internal predecessors, (13319), 5314 states have call successors, (5314), 1482 states have call predecessors, (5314), 1453 states have return successors, (5546), 5139 states have call predecessors, (5546), 5310 states have call successors, (5546) [2022-11-22 01:46:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17114 states to 17114 states and 24179 transitions. [2022-11-22 01:46:31,095 INFO L78 Accepts]: Start accepts. Automaton has 17114 states and 24179 transitions. Word has length 219 [2022-11-22 01:46:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:31,099 INFO L495 AbstractCegarLoop]: Abstraction has 17114 states and 24179 transitions. [2022-11-22 01:46:31,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:46:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand 17114 states and 24179 transitions. [2022-11-22 01:46:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-22 01:46:31,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:31,104 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:31,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:46:31,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1463273485, now seen corresponding path program 1 times [2022-11-22 01:46:31,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:31,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506831546] [2022-11-22 01:46:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:31,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-22 01:46:31,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:31,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506831546] [2022-11-22 01:46:31,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506831546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:31,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:31,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:31,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210687282] [2022-11-22 01:46:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:31,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:31,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:31,358 INFO L87 Difference]: Start difference. First operand 17114 states and 24179 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:46:34,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:37,599 INFO L93 Difference]: Finished difference Result 43553 states and 61621 transitions. [2022-11-22 01:46:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 215 [2022-11-22 01:46:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:37,768 INFO L225 Difference]: With dead ends: 43553 [2022-11-22 01:46:37,768 INFO L226 Difference]: Without dead ends: 26474 [2022-11-22 01:46:37,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:37,837 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1429 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 3162 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 01:46:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26474 states. [2022-11-22 01:46:39,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26474 to 26425. [2022-11-22 01:46:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26425 states, 16066 states have (on average 1.2873770695879496) internal successors, (20683), 16518 states have internal predecessors, (20683), 8124 states have call successors, (8124), 2279 states have call predecessors, (8124), 2232 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-22 01:46:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26425 states to 26425 states and 37275 transitions. [2022-11-22 01:46:39,823 INFO L78 Accepts]: Start accepts. Automaton has 26425 states and 37275 transitions. Word has length 215 [2022-11-22 01:46:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:39,824 INFO L495 AbstractCegarLoop]: Abstraction has 26425 states and 37275 transitions. [2022-11-22 01:46:39,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:46:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 26425 states and 37275 transitions. [2022-11-22 01:46:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-22 01:46:39,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:39,829 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:39,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:46:39,830 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1141548017, now seen corresponding path program 1 times [2022-11-22 01:46:39,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:39,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644226830] [2022-11-22 01:46:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:39,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-11-22 01:46:40,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:40,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644226830] [2022-11-22 01:46:40,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644226830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:40,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:40,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:40,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609490269] [2022-11-22 01:46:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:40,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:40,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:40,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:40,698 INFO L87 Difference]: Start difference. First operand 26425 states and 37275 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:46:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:45,831 INFO L93 Difference]: Finished difference Result 26431 states and 37280 transitions. [2022-11-22 01:46:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:46:45,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 239 [2022-11-22 01:46:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:45,991 INFO L225 Difference]: With dead ends: 26431 [2022-11-22 01:46:45,991 INFO L226 Difference]: Without dead ends: 26429 [2022-11-22 01:46:46,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:46,009 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 1515 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:46,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 3862 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 01:46:46,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26429 states. [2022-11-22 01:46:47,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26429 to 26429. [2022-11-22 01:46:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26429 states, 16069 states have (on average 1.287323417760906) internal successors, (20686), 16521 states have internal predecessors, (20686), 8124 states have call successors, (8124), 2280 states have call predecessors, (8124), 2233 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-22 01:46:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26429 states to 26429 states and 37278 transitions. [2022-11-22 01:46:47,775 INFO L78 Accepts]: Start accepts. Automaton has 26429 states and 37278 transitions. Word has length 239 [2022-11-22 01:46:47,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:47,776 INFO L495 AbstractCegarLoop]: Abstraction has 26429 states and 37278 transitions. [2022-11-22 01:46:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:46:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 26429 states and 37278 transitions. [2022-11-22 01:46:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-22 01:46:47,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:47,781 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-22 01:46:47,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:46:47,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 916100242, now seen corresponding path program 1 times [2022-11-22 01:46:47,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:47,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703955230] [2022-11-22 01:46:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:47,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-11-22 01:46:48,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:48,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703955230] [2022-11-22 01:46:48,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703955230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:48,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:48,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:48,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485428440] [2022-11-22 01:46:48,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:48,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:48,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:48,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:48,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:48,828 INFO L87 Difference]: Start difference. First operand 26429 states and 37278 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:46:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:54,433 INFO L93 Difference]: Finished difference Result 26435 states and 37283 transitions. [2022-11-22 01:46:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:46:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 244 [2022-11-22 01:46:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:54,555 INFO L225 Difference]: With dead ends: 26435 [2022-11-22 01:46:54,555 INFO L226 Difference]: Without dead ends: 26433 [2022-11-22 01:46:54,567 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 01:46:54,568 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1510 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:54,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 3865 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:46:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26433 states. [2022-11-22 01:46:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26433 to 26433. [2022-11-22 01:46:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26433 states, 16072 states have (on average 1.2872697859631657) internal successors, (20689), 16524 states have internal predecessors, (20689), 8124 states have call successors, (8124), 2281 states have call predecessors, (8124), 2234 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-22 01:46:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26433 states to 26433 states and 37281 transitions. [2022-11-22 01:46:56,257 INFO L78 Accepts]: Start accepts. Automaton has 26433 states and 37281 transitions. Word has length 244 [2022-11-22 01:46:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:56,258 INFO L495 AbstractCegarLoop]: Abstraction has 26433 states and 37281 transitions. [2022-11-22 01:46:56,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:46:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 26433 states and 37281 transitions. [2022-11-22 01:46:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-22 01:46:56,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:56,264 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:56,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:46:56,265 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:56,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:56,266 INFO L85 PathProgramCache]: Analyzing trace with hash 169889199, now seen corresponding path program 1 times [2022-11-22 01:46:56,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:56,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703785189] [2022-11-22 01:46:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:56,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:57,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-11-22 01:46:57,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:57,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703785189] [2022-11-22 01:46:57,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703785189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:57,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:57,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643079264] [2022-11-22 01:46:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:57,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:57,302 INFO L87 Difference]: Start difference. First operand 26433 states and 37281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:47:01,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:02,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:05,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:05,595 INFO L93 Difference]: Finished difference Result 28558 states and 39474 transitions. [2022-11-22 01:47:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:47:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 249 [2022-11-22 01:47:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:05,723 INFO L225 Difference]: With dead ends: 28558 [2022-11-22 01:47:05,723 INFO L226 Difference]: Without dead ends: 28554 [2022-11-22 01:47:05,739 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 01:47:05,740 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 1229 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:05,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 4244 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-22 01:47:05,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28554 states. [2022-11-22 01:47:07,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28554 to 28554. [2022-11-22 01:47:07,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28554 states, 17191 states have (on average 1.2770635797801175) internal successors, (21954), 17642 states have internal predecessors, (21954), 8586 states have call successors, (8586), 2822 states have call predecessors, (8586), 2774 states have return successors, (8930), 8265 states have call predecessors, (8930), 8582 states have call successors, (8930) [2022-11-22 01:47:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28554 states to 28554 states and 39470 transitions. [2022-11-22 01:47:07,403 INFO L78 Accepts]: Start accepts. Automaton has 28554 states and 39470 transitions. Word has length 249 [2022-11-22 01:47:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:07,404 INFO L495 AbstractCegarLoop]: Abstraction has 28554 states and 39470 transitions. [2022-11-22 01:47:07,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:47:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 28554 states and 39470 transitions. [2022-11-22 01:47:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-22 01:47:07,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:07,411 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:07,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:47:07,411 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:47:07,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1266296098, now seen corresponding path program 1 times [2022-11-22 01:47:07,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:07,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842497491] [2022-11-22 01:47:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:07,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-11-22 01:47:08,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:08,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842497491] [2022-11-22 01:47:08,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842497491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:08,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:08,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:47:08,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305556072] [2022-11-22 01:47:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:08,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:47:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:47:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:47:08,403 INFO L87 Difference]: Start difference. First operand 28554 states and 39470 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:47:12,068 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 01:47:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:14,243 INFO L93 Difference]: Finished difference Result 28554 states and 39470 transitions. [2022-11-22 01:47:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:47:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 252 [2022-11-22 01:47:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:14,352 INFO L225 Difference]: With dead ends: 28554 [2022-11-22 01:47:14,352 INFO L226 Difference]: Without dead ends: 28275 [2022-11-22 01:47:14,369 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 01:47:14,370 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 1507 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:14,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 3862 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 01:47:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28275 states. [2022-11-22 01:47:16,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28275 to 28275. [2022-11-22 01:47:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28275 states, 17131 states have (on average 1.2724300974840932) internal successors, (21798), 17486 states have internal predecessors, (21798), 8387 states have call successors, (8387), 2785 states have call predecessors, (8387), 2755 states have return successors, (8735), 8179 states have call predecessors, (8735), 8387 states have call successors, (8735) [2022-11-22 01:47:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28275 states to 28275 states and 38920 transitions. [2022-11-22 01:47:16,138 INFO L78 Accepts]: Start accepts. Automaton has 28275 states and 38920 transitions. Word has length 252 [2022-11-22 01:47:16,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:16,139 INFO L495 AbstractCegarLoop]: Abstraction has 28275 states and 38920 transitions. [2022-11-22 01:47:16,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:47:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 28275 states and 38920 transitions. [2022-11-22 01:47:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-22 01:47:16,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:16,146 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:47:16,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:47:16,147 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:47:16,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash 690906089, now seen corresponding path program 1 times [2022-11-22 01:47:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:16,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307075146] [2022-11-22 01:47:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2022-11-22 01:47:16,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:16,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307075146] [2022-11-22 01:47:16,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307075146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:47:16,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939373732] [2022-11-22 01:47:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:16,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:47:16,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:47:16,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:47:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:47:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:17,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:47:17,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2022-11-22 01:47:17,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:47:17,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939373732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:17,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:47:17,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 01:47:17,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014266337] [2022-11-22 01:47:17,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:17,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:47:17,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:17,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:47:17,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:47:17,708 INFO L87 Difference]: Start difference. First operand 28275 states and 38920 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:47:21,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:24,564 INFO L93 Difference]: Finished difference Result 69604 states and 95876 transitions. [2022-11-22 01:47:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:47:24,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 257 [2022-11-22 01:47:24,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:24,738 INFO L225 Difference]: With dead ends: 69604 [2022-11-22 01:47:24,739 INFO L226 Difference]: Without dead ends: 41486 [2022-11-22 01:47:24,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:47:24,832 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 1403 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:24,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2938 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 01:47:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41486 states. [2022-11-22 01:47:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41486 to 41450. [2022-11-22 01:47:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41450 states, 25121 states have (on average 1.2722821543728355) internal successors, (31961), 25662 states have internal predecessors, (31961), 12263 states have call successors, (12263), 4108 states have call predecessors, (12263), 4064 states have return successors, (12775), 11939 states have call predecessors, (12775), 12263 states have call successors, (12775) [2022-11-22 01:47:27,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41450 states to 41450 states and 56999 transitions. [2022-11-22 01:47:27,735 INFO L78 Accepts]: Start accepts. Automaton has 41450 states and 56999 transitions. Word has length 257 [2022-11-22 01:47:27,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:27,735 INFO L495 AbstractCegarLoop]: Abstraction has 41450 states and 56999 transitions. [2022-11-22 01:47:27,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:47:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 41450 states and 56999 transitions. [2022-11-22 01:47:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-22 01:47:27,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:27,743 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-22 01:47:27,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:27,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb20c234-cb86-405b-be26-6e1b38b09db6/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:47:27,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:47:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1003314356, now seen corresponding path program 1 times [2022-11-22 01:47:27,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:27,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009200758] [2022-11-22 01:47:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2022-11-22 01:47:28,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:28,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009200758] [2022-11-22 01:47:28,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009200758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:28,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:28,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:47:28,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825038829] [2022-11-22 01:47:28,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:28,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:47:28,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:47:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:47:28,227 INFO L87 Difference]: Start difference. First operand 41450 states and 56999 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 01:47:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:35,775 INFO L93 Difference]: Finished difference Result 102394 states and 140909 transitions. [2022-11-22 01:47:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:47:35,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 268 [2022-11-22 01:47:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:35,990 INFO L225 Difference]: With dead ends: 102394 [2022-11-22 01:47:35,990 INFO L226 Difference]: Without dead ends: 61101 [2022-11-22 01:47:36,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:47:36,305 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 1429 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:36,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 2942 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 01:47:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61101 states.