./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-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/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-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/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 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add --- 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 01:55:56,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:56,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:56,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:56,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:56,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:56,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:56,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:56,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:56,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:56,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:56,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:56,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:56,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:56,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:56,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:56,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:56,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:56,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:56,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:56,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:56,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:56,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:56,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:56,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:56,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:56,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:56,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:56,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:56,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:56,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:56,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:56,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:56,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:56,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:56,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:56,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:56,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:56,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:56,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:56,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:56,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:55:56,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:56,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:56,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:56,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:56,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:56,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:56,331 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:56,331 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:56,332 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:56,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:55:56,333 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:56,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:56,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:55:56,343 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:55:56,343 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:56,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:55:56,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:55:56,344 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:55:56,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:56,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:55:56,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:56,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:55:56,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:56,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:55:56,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:55:56,347 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:56,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:55:56,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:56,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:56,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:56,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:56,349 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:55:56,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:56,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:55:56,350 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:55:56,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:55:56,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:55:56,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:56,351 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add [2022-11-22 01:55:56,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:56,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:56,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:56,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:56,678 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:56,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 01:55:59,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:56:00,736 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:56:00,736 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 01:56:00,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/data/9effbc366/d86d235118c5445da212c0bcd92999d6/FLAGe04fb34ce [2022-11-22 01:56:00,850 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/data/9effbc366/d86d235118c5445da212c0bcd92999d6 [2022-11-22 01:56:00,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:56:00,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:56:00,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:00,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:56:00,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:56:00,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:00" (1/1) ... [2022-11-22 01:56:00,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463548a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:00, skipping insertion in model container [2022-11-22 01:56:00,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:00" (1/1) ... [2022-11-22 01:56:00,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:56:01,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:56:09,239 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-22 01:56:09,242 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-22 01:56:09,243 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-22 01:56:09,243 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-22 01:56:09,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:09,381 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:56:10,409 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-22 01:56:10,409 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-22 01:56:10,410 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-22 01:56:10,411 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_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-22 01:56:10,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:11,182 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:56:11,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11 WrapperNode [2022-11-22 01:56:11,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:11,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:11,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:56:11,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:56:11,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:11,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:12,479 INFO L138 Inliner]: procedures = 730, calls = 16236, calls flagged for inlining = 402, calls inlined = 349, statements flattened = 28557 [2022-11-22 01:56:12,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:12,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:56:12,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:56:12,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:56:12,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:12,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:12,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:12,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:56:13,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:56:13,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:56:13,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:56:13,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (1/1) ... [2022-11-22 01:56:13,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:56:13,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:13,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:56:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:56:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:56:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:56:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-22 01:56:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-22 01:56:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:56:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:56:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-22 01:56:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-22 01:56:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-22 01:56:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-22 01:56:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 01:56:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 01:56:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 01:56:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 01:56:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:56:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:56:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-22 01:56:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-22 01:56:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:56:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:56:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:56:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:56:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 01:56:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 01:56:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-22 01:56:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-22 01:56:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:56:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:56:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-22 01:56:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-22 01:56:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-22 01:56:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-22 01:56:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-22 01:56:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-22 01:56:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:56:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:56:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 01:56:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 01:56:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 01:56:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 01:56:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-22 01:56:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-22 01:56:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:56:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:56:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-22 01:56:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-22 01:56:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:56:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:56:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:56:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:56:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-22 01:56:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-22 01:56:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-22 01:56:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-22 01:56:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:56:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:56:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-22 01:56:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-22 01:56:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-22 01:56:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-22 01:56:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:56:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:56:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-22 01:56:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-22 01:56:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-22 01:56:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-22 01:56:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-22 01:56:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-22 01:56:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-22 01:56:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-22 01:56:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:56:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:56:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:56:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:56:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:56:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:56:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:56:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:56:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:56:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:56:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:56:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:56:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:56:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:56:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:56:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:56:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:56:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:56:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:56:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:56:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:56:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-22 01:56:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-22 01:56:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-22 01:56:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-22 01:56:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-22 01:56:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-22 01:56:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-22 01:56:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-22 01:56:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:56:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:56:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-22 01:56:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-22 01:56:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:56:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:56:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-22 01:56:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-22 01:56:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-22 01:56:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-22 01:56:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-22 01:56:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-22 01:56:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:56:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:56:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:56:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:56:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-22 01:56:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-22 01:56:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-22 01:56:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-22 01:56:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:56:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 01:56:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 01:56:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-22 01:56:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-22 01:56:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-22 01:56:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-22 01:56:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-22 01:56:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-22 01:56:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:56:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:56:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-22 01:56:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-22 01:56:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:56:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:56:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:56:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-22 01:56:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-22 01:56:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:56:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:56:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:56:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-22 01:56:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-22 01:56:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-22 01:56:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-22 01:56:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-22 01:56:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-22 01:56:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:56:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:56:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-22 01:56:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-22 01:56:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-22 01:56:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-22 01:56:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:56:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:56:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-22 01:56:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-22 01:56:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:56:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:56:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:56:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:56:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-22 01:56:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-22 01:56:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:56:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:56:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-22 01:56:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-22 01:56:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-22 01:56:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-22 01:56:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 01:56:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 01:56:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:56:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:56:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-22 01:56:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-22 01:56:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-22 01:56:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-22 01:56:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 01:56:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 01:56:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-22 01:56:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-22 01:56:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-22 01:56:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-22 01:56:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:56:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:56:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:56:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:56:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:56:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-22 01:56:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-22 01:56:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 01:56:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 01:56:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:56:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:56:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:56:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:56:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:56:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:56:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:56:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:56:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-22 01:56:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-22 01:56:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:56:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 01:56:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 01:56:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:56:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:56:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-22 01:56:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-22 01:56:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-22 01:56:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-22 01:56:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-22 01:56:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-22 01:56:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-22 01:56:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-22 01:56:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:56:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:56:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-22 01:56:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-22 01:56:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-22 01:56:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-22 01:56:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-22 01:56:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-22 01:56:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:56:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:56:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:56:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:56:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:56:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:56:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-22 01:56:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-22 01:56:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:56:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:56:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-22 01:56:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-22 01:56:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-22 01:56:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-22 01:56:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:56:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:56:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-22 01:56:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-22 01:56:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-22 01:56:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-22 01:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-22 01:56:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-22 01:56:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:56:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:56:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-22 01:56:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-22 01:56:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:56:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:56:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-22 01:56:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-22 01:56:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:56:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:56:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:56:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:56:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-22 01:56:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-22 01:56:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-22 01:56:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-22 01:56:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-22 01:56:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-22 01:56:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 01:56:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 01:56:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:56:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:56:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-22 01:56:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-22 01:56:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:56:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:56:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-22 01:56:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-22 01:56:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-22 01:56:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-22 01:56:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-22 01:56:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-22 01:56:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:56:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:56:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-22 01:56:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-22 01:56:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:56:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:56:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:56:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:56:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:56:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:56:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:56:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:56:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:56:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:56:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-22 01:56:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-22 01:56:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:56:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:56:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:56:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:56:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:56:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-22 01:56:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-22 01:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:56:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 01:56:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 01:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-22 01:56:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-22 01:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:56:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:56:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 01:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 01:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-22 01:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-22 01:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-22 01:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-22 01:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-22 01:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-22 01:56:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:56:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:56:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-22 01:56:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-22 01:56:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-22 01:56:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-22 01:56:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-22 01:56:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-22 01:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:56:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-22 01:56:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-22 01:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-22 01:56:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-22 01:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 01:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 01:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 01:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 01:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-22 01:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-22 01:56:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:56:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 01:56:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 01:56:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:56:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:56:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 01:56:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 01:56:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-22 01:56:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-22 01:56:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-22 01:56:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-22 01:56:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-22 01:56:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-22 01:56:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:56:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-22 01:56:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-22 01:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-22 01:56:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-22 01:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-22 01:56:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-22 01:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:56:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-22 01:56:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-22 01:56:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:56:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:56:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-22 01:56:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-22 01:56:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:56:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:56:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:56:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:56:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:56:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:56:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:56:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:56:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-22 01:56:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-22 01:56:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:56:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:56:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-22 01:56:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-22 01:56:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-22 01:56:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-22 01:56:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-22 01:56:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-22 01:56:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-22 01:56:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-22 01:56:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-22 01:56:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-22 01:56:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-22 01:56:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-22 01:56:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-22 01:56:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-22 01:56:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-22 01:56:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-22 01:56:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:56:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:56:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:56:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:56:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:56:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:56:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-22 01:56:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-22 01:56:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 01:56:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 01:56:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-22 01:56:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-22 01:56:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-22 01:56:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-22 01:56:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-22 01:56:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-22 01:56:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:56:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:56:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:56:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:56:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-22 01:56:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-22 01:56:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:56:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:56:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 01:56:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 01:56:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:56:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:56:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-22 01:56:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-22 01:56:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-22 01:56:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-22 01:56:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:56:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-22 01:56:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-22 01:56:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:56:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:56:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-22 01:56:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-22 01:56:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-22 01:56:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-22 01:56:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-22 01:56:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-22 01:56:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:56:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:56:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-22 01:56:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-22 01:56:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:56:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:56:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 01:56:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 01:56:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-22 01:56:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-22 01:56:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:56:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:56:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-22 01:56:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-22 01:56:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-22 01:56:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-22 01:56:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-22 01:56:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-22 01:56:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-22 01:56:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-22 01:56:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:56:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:56:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2022-11-22 01:56:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2022-11-22 01:56:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-22 01:56:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-22 01:56:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-22 01:56:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-22 01:56:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-22 01:56:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-22 01:56:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:56:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:56:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:56:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:56:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:56:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:56:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:56:14,032 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:56:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-22 01:56:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-22 01:56:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-22 01:56:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-22 01:56:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:56:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:56:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-22 01:56:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-22 01:56:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:56:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:56:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 01:56:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 01:56:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-22 01:56:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-22 01:56:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:56:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:56:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:56:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:56:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-22 01:56:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-22 01:56:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-22 01:56:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-22 01:56:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:56:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:56:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 01:56:16,357 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:56:16,362 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:56:17,980 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:57:20,777 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:57:21,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:57:28,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:57:28,715 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 01:57:28,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:28 BoogieIcfgContainer [2022-11-22 01:57:28,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:57:28,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:57:28,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:57:28,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:57:28,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:00" (1/3) ... [2022-11-22 01:57:28,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4a2a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:28, skipping insertion in model container [2022-11-22 01:57:28,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:11" (2/3) ... [2022-11-22 01:57:28,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4a2a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:28, skipping insertion in model container [2022-11-22 01:57:28,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:28" (3/3) ... [2022-11-22 01:57:28,733 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 01:57:28,754 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:57:28,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:57:28,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:57:28,919 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;@194ef37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:57:28,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:57:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) [2022-11-22 01:57:29,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-22 01:57:29,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:29,069 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:29,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 771816033, now seen corresponding path program 1 times [2022-11-22 01:57:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:29,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864268307] [2022-11-22 01:57:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-22 01:57:31,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:31,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864268307] [2022-11-22 01:57:31,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864268307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:31,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:31,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690119400] [2022-11-22 01:57:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:31,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:31,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:31,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:31,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:31,503 INFO L87 Difference]: Start difference. First operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:57:38,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:40,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:48,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:52,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:54,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:56,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:57,158 INFO L93 Difference]: Finished difference Result 19570 states and 29518 transitions. [2022-11-22 01:57:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:57,161 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2022-11-22 01:57:57,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:57,313 INFO L225 Difference]: With dead ends: 19570 [2022-11-22 01:57:57,314 INFO L226 Difference]: Without dead ends: 12883 [2022-11-22 01:57:57,390 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 01:57:57,396 INFO L413 NwaCegarLoop]: 11385 mSDtfsCounter, 9288 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9289 SdHoareTripleChecker+Valid, 20638 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:57,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9289 Valid, 20638 Invalid, 1648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1638 Invalid, 3 Unknown, 0 Unchecked, 24.7s Time] [2022-11-22 01:57:57,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2022-11-22 01:57:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12875. [2022-11-22 01:57:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 8211 states have (on average 1.3363780294726586) internal successors, (10973), 8391 states have internal predecessors, (10973), 4183 states have call successors, (4183), 481 states have call predecessors, (4183), 480 states have return successors, (4180), 4163 states have call predecessors, (4180), 4179 states have call successors, (4180) [2022-11-22 01:57:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 19336 transitions. [2022-11-22 01:57:59,029 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 19336 transitions. Word has length 251 [2022-11-22 01:57:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:59,034 INFO L495 AbstractCegarLoop]: Abstraction has 12875 states and 19336 transitions. [2022-11-22 01:57:59,035 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:57:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 19336 transitions. [2022-11-22 01:57:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-22 01:57:59,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:59,060 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:59,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:57:59,060 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:59,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1126790389, now seen corresponding path program 1 times [2022-11-22 01:57:59,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:59,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983065341] [2022-11-22 01:57:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-22 01:58:03,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:03,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983065341] [2022-11-22 01:58:03,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983065341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:03,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:03,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:58:03,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436517376] [2022-11-22 01:58:03,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:03,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:03,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:03,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:03,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:03,307 INFO L87 Difference]: Start difference. First operand 12875 states and 19336 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:58:06,036 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 01:58:16,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:24,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:28,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:33,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:35,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:38,295 INFO L93 Difference]: Finished difference Result 19115 states and 28685 transitions. [2022-11-22 01:58:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:58:38,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 293 [2022-11-22 01:58:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:38,453 INFO L225 Difference]: With dead ends: 19115 [2022-11-22 01:58:38,453 INFO L226 Difference]: Without dead ends: 19113 [2022-11-22 01:58:38,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:58:38,475 INFO L413 NwaCegarLoop]: 11319 mSDtfsCounter, 9339 mSDsluCounter, 31835 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9342 SdHoareTripleChecker+Valid, 43154 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:38,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9342 Valid, 43154 Invalid, 3265 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3259 Invalid, 4 Unknown, 0 Unchecked, 34.0s Time] [2022-11-22 01:58:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19113 states. [2022-11-22 01:58:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19113 to 19103. [2022-11-22 01:58:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19103 states, 12155 states have (on average 1.334923899629782) internal successors, (16226), 12426 states have internal predecessors, (16226), 6225 states have call successors, (6225), 724 states have call predecessors, (6225), 722 states have return successors, (6219), 6193 states have call predecessors, (6219), 6217 states have call successors, (6219) [2022-11-22 01:58:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19103 states to 19103 states and 28670 transitions. [2022-11-22 01:58:40,147 INFO L78 Accepts]: Start accepts. Automaton has 19103 states and 28670 transitions. Word has length 293 [2022-11-22 01:58:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:40,149 INFO L495 AbstractCegarLoop]: Abstraction has 19103 states and 28670 transitions. [2022-11-22 01:58:40,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:58:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 19103 states and 28670 transitions. [2022-11-22 01:58:40,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-22 01:58:40,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:40,162 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:40,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:58:40,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 820338479, now seen corresponding path program 1 times [2022-11-22 01:58:40,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:40,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171800081] [2022-11-22 01:58:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2255 trivial. 0 not checked. [2022-11-22 01:58:43,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171800081] [2022-11-22 01:58:43,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171800081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:43,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:43,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:58:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399787961] [2022-11-22 01:58:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:43,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:43,932 INFO L87 Difference]: Start difference. First operand 19103 states and 28670 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-22 01:58:55,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:03,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:06,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:10,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:12,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:14,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:14,976 INFO L93 Difference]: Finished difference Result 31510 states and 47270 transitions. [2022-11-22 01:59:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:59:14,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 302 [2022-11-22 01:59:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:15,193 INFO L225 Difference]: With dead ends: 31510 [2022-11-22 01:59:15,194 INFO L226 Difference]: Without dead ends: 31506 [2022-11-22 01:59:15,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:59:15,224 INFO L413 NwaCegarLoop]: 11322 mSDtfsCounter, 9332 mSDsluCounter, 31835 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9334 SdHoareTripleChecker+Valid, 43157 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:15,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9334 Valid, 43157 Invalid, 3262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3255 Invalid, 5 Unknown, 0 Unchecked, 30.0s Time] [2022-11-22 01:59:15,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31506 states. [2022-11-22 01:59:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31506 to 31494. [2022-11-22 01:59:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31494 states, 20012 states have (on average 1.33374975014991) internal successors, (26691), 20463 states have internal predecessors, (26691), 10284 states have call successors, (10284), 1201 states have call predecessors, (10284), 1197 states have return successors, (10276), 10230 states have call predecessors, (10276), 10272 states have call successors, (10276) [2022-11-22 01:59:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31494 states to 31494 states and 47251 transitions. [2022-11-22 01:59:18,173 INFO L78 Accepts]: Start accepts. Automaton has 31494 states and 47251 transitions. Word has length 302 [2022-11-22 01:59:18,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:18,178 INFO L495 AbstractCegarLoop]: Abstraction has 31494 states and 47251 transitions. [2022-11-22 01:59:18,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-22 01:59:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31494 states and 47251 transitions. [2022-11-22 01:59:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-22 01:59:18,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:18,191 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:18,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:59:18,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash -323889416, now seen corresponding path program 1 times [2022-11-22 01:59:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:18,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090149558] [2022-11-22 01:59:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2022-11-22 01:59:21,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:21,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090149558] [2022-11-22 01:59:21,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090149558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:21,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:21,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:59:21,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536597292] [2022-11-22 01:59:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:21,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:21,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:21,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:21,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:59:21,891 INFO L87 Difference]: Start difference. First operand 31494 states and 47251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:59:33,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:42,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:45,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:48,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:51,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:53,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:55,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:57,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:59,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:01,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:04,742 INFO L93 Difference]: Finished difference Result 31510 states and 47269 transitions. [2022-11-22 02:00:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:00:04,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 306 [2022-11-22 02:00:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:04,936 INFO L225 Difference]: With dead ends: 31510 [2022-11-22 02:00:04,937 INFO L226 Difference]: Without dead ends: 31476 [2022-11-22 02:00:04,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:00:04,957 INFO L413 NwaCegarLoop]: 11325 mSDtfsCounter, 9333 mSDsluCounter, 31840 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9334 SdHoareTripleChecker+Valid, 43165 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:04,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9334 Valid, 43165 Invalid, 3269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3259 Invalid, 8 Unknown, 0 Unchecked, 41.6s Time] [2022-11-22 02:00:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31476 states. [2022-11-22 02:00:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31476 to 31466. [2022-11-22 02:00:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31466 states, 20001 states have (on average 1.3337333133343332) internal successors, (26676), 20449 states have internal predecessors, (26676), 10271 states have call successors, (10271), 1196 states have call predecessors, (10271), 1193 states have return successors, (10267), 10221 states have call predecessors, (10267), 10263 states have call successors, (10267) [2022-11-22 02:00:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31466 states to 31466 states and 47214 transitions. [2022-11-22 02:00:07,828 INFO L78 Accepts]: Start accepts. Automaton has 31466 states and 47214 transitions. Word has length 306 [2022-11-22 02:00:07,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:07,830 INFO L495 AbstractCegarLoop]: Abstraction has 31466 states and 47214 transitions. [2022-11-22 02:00:07,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 02:00:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 31466 states and 47214 transitions. [2022-11-22 02:00:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-22 02:00:07,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:07,916 INFO L195 NwaCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:07,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:00:07,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:00:07,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:07,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2056473603, now seen corresponding path program 1 times [2022-11-22 02:00:07,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:07,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396667632] [2022-11-22 02:00:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:07,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-22 02:00:09,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:09,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396667632] [2022-11-22 02:00:09,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396667632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:09,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:09,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:09,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663314682] [2022-11-22 02:00:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:09,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:00:09,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:09,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:00:09,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:00:09,708 INFO L87 Difference]: Start difference. First operand 31466 states and 47214 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 02:00:17,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:20,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:24,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:25,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:29,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:32,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:33,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:33,602 INFO L93 Difference]: Finished difference Result 78979 states and 118552 transitions. [2022-11-22 02:00:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:00:33,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 411 [2022-11-22 02:00:33,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:33,947 INFO L225 Difference]: With dead ends: 78979 [2022-11-22 02:00:33,948 INFO L226 Difference]: Without dead ends: 47560 [2022-11-22 02:00:34,161 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 02:00:34,161 INFO L413 NwaCegarLoop]: 11327 mSDtfsCounter, 8539 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8540 SdHoareTripleChecker+Valid, 20551 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:34,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8540 Valid, 20551 Invalid, 1743 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1720 Invalid, 4 Unknown, 0 Unchecked, 21.9s Time] [2022-11-22 02:00:34,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47560 states. [2022-11-22 02:00:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47560 to 47534. [2022-11-22 02:00:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47534 states, 30346 states have (on average 1.3320371712911092) internal successors, (40422), 31003 states have internal predecessors, (40422), 15440 states have call successors, (15440), 1752 states have call predecessors, (15440), 1747 states have return successors, (15439), 15354 states have call predecessors, (15439), 15432 states have call successors, (15439) [2022-11-22 02:00:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47534 states to 47534 states and 71301 transitions. [2022-11-22 02:00:38,122 INFO L78 Accepts]: Start accepts. Automaton has 47534 states and 71301 transitions. Word has length 411 [2022-11-22 02:00:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:38,124 INFO L495 AbstractCegarLoop]: Abstraction has 47534 states and 71301 transitions. [2022-11-22 02:00:38,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 02:00:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 47534 states and 71301 transitions. [2022-11-22 02:00:38,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-11-22 02:00:38,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:38,582 INFO L195 NwaCegarLoop]: trace histogram [28, 23, 23, 23, 23, 23, 23, 5, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:38,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:00:38,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:00:38,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash 344866611, now seen corresponding path program 1 times [2022-11-22 02:00:38,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:38,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820686938] [2022-11-22 02:00:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2370 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2361 trivial. 0 not checked. [2022-11-22 02:00:39,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:39,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820686938] [2022-11-22 02:00:39,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820686938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:39,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:39,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:00:39,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216427968] [2022-11-22 02:00:39,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:39,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:00:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:39,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:00:39,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:00:39,789 INFO L87 Difference]: Start difference. First operand 47534 states and 71301 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 02:00:43,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:52,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:55,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:00:57,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:00,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:02,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:01:05,359 INFO L93 Difference]: Finished difference Result 68848 states and 103096 transitions. [2022-11-22 02:01:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:01:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 464 [2022-11-22 02:01:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:01:05,458 INFO L225 Difference]: With dead ends: 68848 [2022-11-22 02:01:05,458 INFO L226 Difference]: Without dead ends: 21361 [2022-11-22 02:01:05,622 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 02:01:05,623 INFO L413 NwaCegarLoop]: 12902 mSDtfsCounter, 6394 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 22072 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:01:05,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 22072 Invalid, 1809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1798 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2022-11-22 02:01:05,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21361 states. [2022-11-22 02:01:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21361 to 21342. [2022-11-22 02:01:07,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21342 states, 13615 states have (on average 1.3277267719427102) internal successors, (18077), 13899 states have internal predecessors, (18077), 6871 states have call successors, (6871), 859 states have call predecessors, (6871), 855 states have return successors, (6868), 6831 states have call predecessors, (6868), 6867 states have call successors, (6868) [2022-11-22 02:01:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21342 states to 21342 states and 31816 transitions. [2022-11-22 02:01:07,360 INFO L78 Accepts]: Start accepts. Automaton has 21342 states and 31816 transitions. Word has length 464 [2022-11-22 02:01:07,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:01:07,361 INFO L495 AbstractCegarLoop]: Abstraction has 21342 states and 31816 transitions. [2022-11-22 02:01:07,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 02:01:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 21342 states and 31816 transitions. [2022-11-22 02:01:07,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-11-22 02:01:07,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:07,379 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:01:07,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:01:07,379 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:01:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1487732916, now seen corresponding path program 1 times [2022-11-22 02:01:07,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:07,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782806472] [2022-11-22 02:01:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-22 02:01:08,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:08,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782806472] [2022-11-22 02:01:08,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782806472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:08,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:08,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:01:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618391595] [2022-11-22 02:01:08,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:08,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:01:08,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:08,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:01:08,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:01:08,999 INFO L87 Difference]: Start difference. First operand 21342 states and 31816 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 02:01:12,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:14,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:17,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:28,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:30,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:32,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:34,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:37,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:01:40,148 INFO L93 Difference]: Finished difference Result 48503 states and 72375 transitions. [2022-11-22 02:01:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:01:40,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 458 [2022-11-22 02:01:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:01:40,276 INFO L225 Difference]: With dead ends: 48503 [2022-11-22 02:01:40,276 INFO L226 Difference]: Without dead ends: 27302 [2022-11-22 02:01:40,355 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 02:01:40,356 INFO L413 NwaCegarLoop]: 17129 mSDtfsCounter, 8533 mSDsluCounter, 9222 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8534 SdHoareTripleChecker+Valid, 26351 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:01:40,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8534 Valid, 26351 Invalid, 2350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2330 Invalid, 5 Unknown, 0 Unchecked, 30.1s Time] [2022-11-22 02:01:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2022-11-22 02:01:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 27285. [2022-11-22 02:01:41,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27285 states, 17421 states have (on average 1.3272487228058092) internal successors, (23122), 17789 states have internal predecessors, (23122), 8780 states have call successors, (8780), 1089 states have call predecessors, (8780), 1083 states have return successors, (8778), 8721 states have call predecessors, (8778), 8776 states have call successors, (8778) [2022-11-22 02:01:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27285 states to 27285 states and 40680 transitions. [2022-11-22 02:01:42,177 INFO L78 Accepts]: Start accepts. Automaton has 27285 states and 40680 transitions. Word has length 458 [2022-11-22 02:01:42,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:01:42,178 INFO L495 AbstractCegarLoop]: Abstraction has 27285 states and 40680 transitions. [2022-11-22 02:01:42,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 02:01:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 27285 states and 40680 transitions. [2022-11-22 02:01:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-11-22 02:01:42,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:42,197 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:01:42,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:01:42,197 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:01:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2032626516, now seen corresponding path program 1 times [2022-11-22 02:01:42,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:42,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650396392] [2022-11-22 02:01:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2022-11-22 02:01:46,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:46,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650396392] [2022-11-22 02:01:46,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650396392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:46,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:46,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:01:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105338727] [2022-11-22 02:01:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:46,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:01:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:01:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:01:46,989 INFO L87 Difference]: Start difference. First operand 27285 states and 40680 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-22 02:01:51,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:58,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:06,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:09,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:12,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:14,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:19,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:21,490 INFO L93 Difference]: Finished difference Result 63901 states and 96193 transitions. [2022-11-22 02:02:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:02:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 520 [2022-11-22 02:02:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:21,648 INFO L225 Difference]: With dead ends: 63901 [2022-11-22 02:02:21,649 INFO L226 Difference]: Without dead ends: 36757 [2022-11-22 02:02:21,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:21,755 INFO L413 NwaCegarLoop]: 11785 mSDtfsCounter, 3650 mSDsluCounter, 21055 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 994 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 32840 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:21,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 32840 Invalid, 3919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 2919 Invalid, 6 Unknown, 0 Unchecked, 32.9s Time] [2022-11-22 02:02:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36757 states. [2022-11-22 02:02:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36757 to 27291. [2022-11-22 02:02:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27291 states, 17427 states have (on average 1.3271360532507028) internal successors, (23128), 17795 states have internal predecessors, (23128), 8780 states have call successors, (8780), 1089 states have call predecessors, (8780), 1083 states have return successors, (8778), 8721 states have call predecessors, (8778), 8776 states have call successors, (8778) [2022-11-22 02:02:24,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27291 states to 27291 states and 40686 transitions. [2022-11-22 02:02:24,208 INFO L78 Accepts]: Start accepts. Automaton has 27291 states and 40686 transitions. Word has length 520 [2022-11-22 02:02:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:24,209 INFO L495 AbstractCegarLoop]: Abstraction has 27291 states and 40686 transitions. [2022-11-22 02:02:24,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-22 02:02:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 27291 states and 40686 transitions. [2022-11-22 02:02:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-11-22 02:02:24,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:24,233 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:02:24,234 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 186361719, now seen corresponding path program 1 times [2022-11-22 02:02:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:24,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314408970] [2022-11-22 02:02:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3318 trivial. 0 not checked. [2022-11-22 02:02:28,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:28,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314408970] [2022-11-22 02:02:28,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314408970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:28,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:28,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:02:28,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256748417] [2022-11-22 02:02:28,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:28,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:28,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:28,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:28,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:28,310 INFO L87 Difference]: Start difference. First operand 27291 states and 40686 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-22 02:02:32,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:45,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:47,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:49,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:52,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:01,739 INFO L93 Difference]: Finished difference Result 49715 states and 74211 transitions. [2022-11-22 02:03:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:03:01,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 537 [2022-11-22 02:03:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:01,937 INFO L225 Difference]: With dead ends: 49715 [2022-11-22 02:03:01,937 INFO L226 Difference]: Without dead ends: 49713 [2022-11-22 02:03:01,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:01,960 INFO L413 NwaCegarLoop]: 11362 mSDtfsCounter, 9630 mSDsluCounter, 31921 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9633 SdHoareTripleChecker+Valid, 43283 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:01,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9633 Valid, 43283 Invalid, 3247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3240 Invalid, 5 Unknown, 0 Unchecked, 31.6s Time] [2022-11-22 02:03:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49713 states. [2022-11-22 02:03:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49713 to 49674. [2022-11-22 02:03:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49674 states, 31709 states have (on average 1.3285502538711407) internal successors, (42127), 32391 states have internal predecessors, (42127), 16018 states have call successors, (16018), 1958 states have call predecessors, (16018), 1946 states have return successors, (16015), 15903 states have call predecessors, (16015), 16010 states have call successors, (16015) [2022-11-22 02:03:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49674 states to 49674 states and 74160 transitions. [2022-11-22 02:03:05,023 INFO L78 Accepts]: Start accepts. Automaton has 49674 states and 74160 transitions. Word has length 537 [2022-11-22 02:03:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:05,025 INFO L495 AbstractCegarLoop]: Abstraction has 49674 states and 74160 transitions. [2022-11-22 02:03:05,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-22 02:03:05,025 INFO L276 IsEmpty]: Start isEmpty. Operand 49674 states and 74160 transitions. [2022-11-22 02:03:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2022-11-22 02:03:05,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:05,038 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:05,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:03:05,039 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash 223227583, now seen corresponding path program 1 times [2022-11-22 02:03:05,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:05,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360222186] [2022-11-22 02:03:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:05,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3360 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3358 trivial. 0 not checked. [2022-11-22 02:03:08,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:08,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360222186] [2022-11-22 02:03:08,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360222186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:08,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:08,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:03:08,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118361590] [2022-11-22 02:03:08,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:08,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:03:08,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:08,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:03:08,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:08,665 INFO L87 Difference]: Start difference. First operand 49674 states and 74160 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-22 02:03:12,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:15,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:28,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:30,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:31,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:33,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:36,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:38,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:46,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:48,171 INFO L93 Difference]: Finished difference Result 49719 states and 74214 transitions. [2022-11-22 02:03:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:03:48,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 545 [2022-11-22 02:03:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:48,386 INFO L225 Difference]: With dead ends: 49719 [2022-11-22 02:03:48,387 INFO L226 Difference]: Without dead ends: 49715 [2022-11-22 02:03:48,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:48,412 INFO L413 NwaCegarLoop]: 11365 mSDtfsCounter, 9624 mSDsluCounter, 31921 mSDsCounter, 0 mSdLazyCounter, 3239 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9626 SdHoareTripleChecker+Valid, 43286 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3239 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:48,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9626 Valid, 43286 Invalid, 3247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3239 Invalid, 6 Unknown, 0 Unchecked, 37.8s Time] [2022-11-22 02:03:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49715 states. [2022-11-22 02:03:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49715 to 49676. [2022-11-22 02:03:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49676 states, 31711 states have (on average 1.3284979975402857) internal successors, (42128), 32392 states have internal predecessors, (42128), 16018 states have call successors, (16018), 1959 states have call predecessors, (16018), 1946 states have return successors, (16015), 15903 states have call predecessors, (16015), 16010 states have call successors, (16015) [2022-11-22 02:03:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49676 states to 49676 states and 74161 transitions. [2022-11-22 02:03:51,833 INFO L78 Accepts]: Start accepts. Automaton has 49676 states and 74161 transitions. Word has length 545 [2022-11-22 02:03:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:51,834 INFO L495 AbstractCegarLoop]: Abstraction has 49676 states and 74161 transitions. [2022-11-22 02:03:51,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-22 02:03:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 49676 states and 74161 transitions. [2022-11-22 02:03:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-22 02:03:51,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:51,848 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:51,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:03:51,848 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash 776497495, now seen corresponding path program 1 times [2022-11-22 02:03:51,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:51,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23040521] [2022-11-22 02:03:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3326 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3322 trivial. 0 not checked. [2022-11-22 02:03:54,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:54,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23040521] [2022-11-22 02:03:54,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23040521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:54,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:54,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:03:54,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105537393] [2022-11-22 02:03:54,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:54,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:03:54,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:54,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:03:54,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:54,902 INFO L87 Difference]: Start difference. First operand 49676 states and 74161 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-22 02:03:58,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:13,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:16,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:19,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:21,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:23,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:25,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:33,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:36,065 WARN L539 Checker$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 02:04:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:37,584 INFO L93 Difference]: Finished difference Result 49715 states and 74210 transitions. [2022-11-22 02:04:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:04:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 547 [2022-11-22 02:04:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:37,779 INFO L225 Difference]: With dead ends: 49715 [2022-11-22 02:04:37,779 INFO L226 Difference]: Without dead ends: 49651 [2022-11-22 02:04:37,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:37,803 INFO L413 NwaCegarLoop]: 11365 mSDtfsCounter, 9621 mSDsluCounter, 31923 mSDsCounter, 0 mSdLazyCounter, 3241 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9622 SdHoareTripleChecker+Valid, 43288 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3241 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:37,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9622 Valid, 43288 Invalid, 3249 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3241 Invalid, 6 Unknown, 0 Unchecked, 40.7s Time] [2022-11-22 02:04:37,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49651 states. [2022-11-22 02:04:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49651 to 49614. [2022-11-22 02:04:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49614 states, 31695 states have (on average 1.3280959141820476) internal successors, (42094), 32359 states have internal predecessors, (42094), 15976 states have call successors, (15976), 1949 states have call predecessors, (15976), 1942 states have return successors, (15977), 15884 states have call predecessors, (15977), 15972 states have call successors, (15977) [2022-11-22 02:04:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49614 states to 49614 states and 74047 transitions. [2022-11-22 02:04:41,229 INFO L78 Accepts]: Start accepts. Automaton has 49614 states and 74047 transitions. Word has length 547 [2022-11-22 02:04:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:41,230 INFO L495 AbstractCegarLoop]: Abstraction has 49614 states and 74047 transitions. [2022-11-22 02:04:41,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-22 02:04:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 49614 states and 74047 transitions. [2022-11-22 02:04:41,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2022-11-22 02:04:41,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:41,371 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 14, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:41,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:04:41,372 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:04:41,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:41,372 INFO L85 PathProgramCache]: Analyzing trace with hash 747076349, now seen corresponding path program 1 times [2022-11-22 02:04:41,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:41,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778853988] [2022-11-22 02:04:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:41,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:41,988 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:04:41,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563171632] [2022-11-22 02:04:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:41,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:41,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:41,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:42,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:04:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:49,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 23147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:04:49,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3608 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 3278 trivial. 0 not checked. [2022-11-22 02:04:49,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:04:49,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:49,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778853988] [2022-11-22 02:04:49,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:04:49,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563171632] [2022-11-22 02:04:49,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563171632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:49,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:49,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:04:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663376775] [2022-11-22 02:04:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:49,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:49,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:49,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:49,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:49,184 INFO L87 Difference]: Start difference. First operand 49614 states and 74047 transitions. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) [2022-11-22 02:04:52,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:03,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:05,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:07,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:13,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:13,119 INFO L93 Difference]: Finished difference Result 76562 states and 114763 transitions. [2022-11-22 02:05:13,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:13,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) Word has length 895 [2022-11-22 02:05:13,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:13,497 INFO L225 Difference]: With dead ends: 76562 [2022-11-22 02:05:13,498 INFO L226 Difference]: Without dead ends: 53958 [2022-11-22 02:05:13,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:13,586 INFO L413 NwaCegarLoop]: 11282 mSDtfsCounter, 1230 mSDsluCounter, 9775 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 21057 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:13,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 21057 Invalid, 1871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1866 Invalid, 4 Unknown, 0 Unchecked, 21.7s Time] [2022-11-22 02:05:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53958 states. [2022-11-22 02:05:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53958 to 49619. [2022-11-22 02:05:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49619 states, 31699 states have (on average 1.328086059497145) internal successors, (42099), 32363 states have internal predecessors, (42099), 15977 states have call successors, (15977), 1949 states have call predecessors, (15977), 1942 states have return successors, (15978), 15885 states have call predecessors, (15978), 15973 states have call successors, (15978) [2022-11-22 02:05:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49619 states to 49619 states and 74054 transitions. [2022-11-22 02:05:17,632 INFO L78 Accepts]: Start accepts. Automaton has 49619 states and 74054 transitions. Word has length 895 [2022-11-22 02:05:17,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:17,633 INFO L495 AbstractCegarLoop]: Abstraction has 49619 states and 74054 transitions. [2022-11-22 02:05:17,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (127), 3 states have call predecessors, (127), 3 states have call successors, (127) [2022-11-22 02:05:17,633 INFO L276 IsEmpty]: Start isEmpty. Operand 49619 states and 74054 transitions. [2022-11-22 02:05:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2022-11-22 02:05:17,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:17,780 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 17, 15, 15, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:17,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:05:17,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 02:05:17,981 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:05:17,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:17,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1602455626, now seen corresponding path program 1 times [2022-11-22 02:05:17,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:17,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369116031] [2022-11-22 02:05:17,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:17,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:18,766 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:05:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439341808] [2022-11-22 02:05:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:18,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:05:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:05:18,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:05:18,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:05:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:26,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 23623 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:05:26,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 3462 trivial. 0 not checked. [2022-11-22 02:05:26,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:26,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:26,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369116031] [2022-11-22 02:05:26,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:05:26,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439341808] [2022-11-22 02:05:26,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439341808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:26,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:26,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522438905] [2022-11-22 02:05:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:26,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:26,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:26,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:26,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:26,217 INFO L87 Difference]: Start difference. First operand 49619 states and 74054 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 2 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2022-11-22 02:05:30,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:44,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:47,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:50,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:52,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:54,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:56,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:02,990 INFO L93 Difference]: Finished difference Result 120984 states and 183155 transitions. [2022-11-22 02:06:02,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:06:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 2 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 939 [2022-11-22 02:06:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:03,479 INFO L225 Difference]: With dead ends: 120984 [2022-11-22 02:06:03,479 INFO L226 Difference]: Without dead ends: 76052 [2022-11-22 02:06:03,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 937 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:03,661 INFO L413 NwaCegarLoop]: 11526 mSDtfsCounter, 4783 mSDsluCounter, 21036 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 1017 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 32562 SdHoareTripleChecker+Invalid, 3867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:03,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5864 Valid, 32562 Invalid, 3867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1017 Valid, 2845 Invalid, 5 Unknown, 0 Unchecked, 32.2s Time] [2022-11-22 02:06:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76052 states. [2022-11-22 02:06:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76052 to 49623. [2022-11-22 02:06:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49623 states, 31703 states have (on average 1.3280446645427877) internal successors, (42103), 32367 states have internal predecessors, (42103), 15977 states have call successors, (15977), 1949 states have call predecessors, (15977), 1942 states have return successors, (15978), 15885 states have call predecessors, (15978), 15973 states have call successors, (15978) [2022-11-22 02:06:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49623 states to 49623 states and 74058 transitions. [2022-11-22 02:06:09,365 INFO L78 Accepts]: Start accepts. Automaton has 49623 states and 74058 transitions. Word has length 939 [2022-11-22 02:06:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:09,366 INFO L495 AbstractCegarLoop]: Abstraction has 49623 states and 74058 transitions. [2022-11-22 02:06:09,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 2 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2022-11-22 02:06:09,366 INFO L276 IsEmpty]: Start isEmpty. Operand 49623 states and 74058 transitions. [2022-11-22 02:06:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2022-11-22 02:06:09,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:09,513 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 18, 15, 15, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:09,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 02:06:09,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 02:06:09,714 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:06:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1748687055, now seen corresponding path program 1 times [2022-11-22 02:06:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:09,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329492401] [2022-11-22 02:06:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:10,731 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:06:10,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496189564] [2022-11-22 02:06:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:10,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:10,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:10,758 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:10,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c38a2fd8-0a61-46c6-9de4-2acc102d9c7c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:06:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:18,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 23882 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:06:18,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3754 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 3494 trivial. 0 not checked. [2022-11-22 02:06:18,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:18,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:18,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329492401] [2022-11-22 02:06:18,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:06:18,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496189564] [2022-11-22 02:06:18,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496189564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:18,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:18,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437304485] [2022-11-22 02:06:18,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:18,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:18,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:18,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:18,539 INFO L87 Difference]: Start difference. First operand 49623 states and 74058 transitions. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (133), 2 states have call predecessors, (133), 2 states have call successors, (133) [2022-11-22 02:06:22,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:23,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:25,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:40,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:42,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:45,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:46,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:50,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:52,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:56,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:01,166 INFO L93 Difference]: Finished difference Result 103398 states and 155286 transitions. [2022-11-22 02:07:01,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:01,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (133), 2 states have call predecessors, (133), 2 states have call successors, (133) Word has length 957 [2022-11-22 02:07:01,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:01,493 INFO L225 Difference]: With dead ends: 103398 [2022-11-22 02:07:01,493 INFO L226 Difference]: Without dead ends: 58462 [2022-11-22 02:07:01,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:07:01,721 INFO L413 NwaCegarLoop]: 10074 mSDtfsCounter, 2573 mSDsluCounter, 18717 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 1027 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 28791 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:01,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 28791 Invalid, 3510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1027 Valid, 2477 Invalid, 6 Unknown, 0 Unchecked, 38.3s Time] [2022-11-22 02:07:01,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58462 states.