./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P --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 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:28:20,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:28:20,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:28:20,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:28:20,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:28:20,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:28:20,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:28:20,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:28:20,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:28:20,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:28:20,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:28:20,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:28:20,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:28:20,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:28:20,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:28:20,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:28:20,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:28:20,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:28:20,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:28:20,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:28:20,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:28:20,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:28:20,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:28:20,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:28:20,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:28:20,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:28:20,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:28:20,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:28:20,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:28:20,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:28:20,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:28:20,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:28:20,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:28:20,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:28:20,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:28:20,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:28:20,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:28:20,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:28:20,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:28:20,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:28:20,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:28:20,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:28:20,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:28:20,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:28:20,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:28:20,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:28:20,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:28:20,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:28:20,525 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:28:20,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:28:20,525 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:28:20,526 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:28:20,526 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:28:20,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:28:20,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:28:20,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:28:20,527 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:28:20,527 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:28:20,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:28:20,527 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:28:20,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:28:20,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:28:20,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:28:20,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:28:20,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:28:20,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:28:20,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:28:20,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:28:20,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:28:20,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:28:20,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:28:20,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:28:20,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:28:20,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:28:20,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:28:20,531 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:28:20,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:28:20,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:28:20,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:28:20,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:28:20,532 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 [2021-11-21 01:28:20,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:28:20,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:28:20,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:28:20,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:28:20,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:28:20,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-21 01:28:20,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/data/bc56eb3d6/0f2f010b47d94d4b8384a48278fa6898/FLAGec558108d [2021-11-21 01:28:21,978 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:28:21,979 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-21 01:28:22,068 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/data/bc56eb3d6/0f2f010b47d94d4b8384a48278fa6898/FLAGec558108d [2021-11-21 01:28:22,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/data/bc56eb3d6/0f2f010b47d94d4b8384a48278fa6898 [2021-11-21 01:28:22,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:28:22,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:28:22,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:28:22,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:28:22,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:28:22,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:28:22" (1/1) ... [2021-11-21 01:28:22,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ec3c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:22, skipping insertion in model container [2021-11-21 01:28:22,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:28:22" (1/1) ... [2021-11-21 01:28:22,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:28:22,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:28:26,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-21 01:28:26,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-21 01:28:26,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-21 01:28:26,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-21 01:28:26,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:28:26,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:28:27,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-21 01:28:27,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-21 01:28:27,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-21 01:28:27,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-21 01:28:27,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:28:27,507 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:28:27,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27 WrapperNode [2021-11-21 01:28:27,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:28:27,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:28:27,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:28:27,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:28:27,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:27,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:27,874 INFO L137 Inliner]: procedures = 374, calls = 3972, calls flagged for inlining = 239, calls inlined = 225, statements flattened = 7966 [2021-11-21 01:28:27,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:28:27,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:28:27,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:28:27,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:28:27,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:27,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:28:28,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:28:28,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:28:28,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:28:28,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (1/1) ... [2021-11-21 01:28:28,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:28:28,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:28,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:28:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e222a02-e8a8-4b69-882a-5df80bf92a25/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:28:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_frontend_attach [2021-11-21 01:28:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_frontend_attach [2021-11-21 01:28:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_exit [2021-11-21 01:28:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_exit [2021-11-21 01:28:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_i2c_transfer [2021-11-21 01:28:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_i2c_transfer [2021-11-21 01:28:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:28:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:28:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_13_4 [2021-11-21 01:28:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_13_4 [2021-11-21 01:28:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:28:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_init [2021-11-21 01:28:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_init [2021-11-21 01:28:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:28:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:28:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:28:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_i2c_transfer [2021-11-21 01:28:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_i2c_transfer [2021-11-21 01:28:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-21 01:28:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-21 01:28:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_adapdata [2021-11-21 01:28:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_adapdata [2021-11-21 01:28:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:28:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:28:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-21 01:28:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-21 01:28:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure rc_keydown [2021-11-21 01:28:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_keydown [2021-11-21 01:28:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_power_ctrl [2021-11-21 01:28:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_power_ctrl [2021-11-21 01:28:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-21 01:28:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-21 01:28:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_tuner_attach [2021-11-21 01:28:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_tuner_attach [2021-11-21 01:28:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure zl100313_frontend_attach [2021-11-21 01:28:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure zl100313_frontend_attach [2021-11-21 01:28:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_i2c_transfer [2021-11-21 01:28:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_i2c_transfer [2021-11-21 01:28:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:28:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-21 01:28:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-21 01:28:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:28:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:28:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:28:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-21 01:28:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-21 01:28:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:28:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:28:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 01:28:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 01:28:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_streaming_ctrl [2021-11-21 01:28:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_streaming_ctrl [2021-11-21 01:28:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-21 01:28:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-21 01:28:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:28:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:28:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_frontend_attach [2021-11-21 01:28:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_frontend_attach [2021-11-21 01:28:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:28:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:28:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_i2c_transfer [2021-11-21 01:28:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_i2c_transfer [2021-11-21 01:28:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:28:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:28:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:28:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-21 01:28:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-21 01:28:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_op_rw [2021-11-21 01:28:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_op_rw [2021-11-21 01:28:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:28:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_frontend_attach [2021-11-21 01:28:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_frontend_attach [2021-11-21 01:28:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:28:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:28:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_generic_rw [2021-11-21 01:28:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_generic_rw [2021-11-21 01:28:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:28:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:28:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:28:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_serit_i2c_transfer [2021-11-21 01:28:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_serit_i2c_transfer [2021-11-21 01:28:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:28:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:28:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-21 01:28:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-21 01:28:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2021-11-21 01:28:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2021-11-21 01:28:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure t220_frontend_attach [2021-11-21 01:28:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure t220_frontend_attach [2021-11-21 01:28:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:28:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:28:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:28:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:28:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:28:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_load_firmware [2021-11-21 01:28:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_load_firmware [2021-11-21 01:28:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_rc_query [2021-11-21 01:28:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_rc_query [2021-11-21 01:28:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_i2c_transfer [2021-11-21 01:28:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_i2c_transfer [2021-11-21 01:28:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-21 01:28:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-21 01:28:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:28:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_frontend_attach [2021-11-21 01:28:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_frontend_attach [2021-11-21 01:28:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:28:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:28:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:28:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 01:28:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 01:28:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:28:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:28:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:28:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_read_mac_address [2021-11-21 01:28:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_read_mac_address [2021-11-21 01:28:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_probe [2021-11-21 01:28:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_probe [2021-11-21 01:28:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:28:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:28:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_read_mac_address [2021-11-21 01:28:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_read_mac_address [2021-11-21 01:28:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-21 01:28:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-21 01:28:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:28:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:28:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_rc_query [2021-11-21 01:28:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_rc_query [2021-11-21 01:28:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-21 01:28:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-21 01:28:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_i2c_func [2021-11-21 01:28:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_i2c_func [2021-11-21 01:28:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_read_mac_address [2021-11-21 01:28:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_read_mac_address [2021-11-21 01:28:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:28:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:28:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:28:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-21 01:28:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-21 01:28:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:28:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:28:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-21 01:28:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_identify_state [2021-11-21 01:28:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_identify_state [2021-11-21 01:28:29,834 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:28:29,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:28:48,300 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:39:54,235 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:39:54,335 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:39:57,801 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:39:57,801 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:39:57,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:57 BoogieIcfgContainer [2021-11-21 01:39:57,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:39:57,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:39:57,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:39:57,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:39:57,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:28:22" (1/3) ... [2021-11-21 01:39:57,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@941fcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:57, skipping insertion in model container [2021-11-21 01:39:57,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:27" (2/3) ... [2021-11-21 01:39:57,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@941fcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:57, skipping insertion in model container [2021-11-21 01:39:57,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:57" (3/3) ... [2021-11-21 01:39:57,816 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-21 01:39:57,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:39:57,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 01:39:57,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:39:57,886 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:39:57,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 01:39:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2021-11-21 01:39:58,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2021-11-21 01:39:58,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:58,057 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 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] [2021-11-21 01:39:58,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:39:58,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1382441658, now seen corresponding path program 1 times [2021-11-21 01:39:58,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:58,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982224039] [2021-11-21 01:39:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:58,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 43059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43059 trivial. 0 not checked. [2021-11-21 01:40:00,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:00,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982224039] [2021-11-21 01:40:00,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982224039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:00,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:00,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:00,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382162936] [2021-11-21 01:40:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:00,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:00,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:00,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:00,205 INFO L87 Difference]: Start difference. First operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-21 01:40:02,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:07,322 INFO L93 Difference]: Finished difference Result 5817 states and 9068 transitions. [2021-11-21 01:40:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) Word has length 1065 [2021-11-21 01:40:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:07,385 INFO L225 Difference]: With dead ends: 5817 [2021-11-21 01:40:07,385 INFO L226 Difference]: Without dead ends: 3913 [2021-11-21 01:40:07,409 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:07,413 INFO L933 BasicCegarLoop]: 3336 mSDtfsCounter, 2816 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:07,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2816 Valid, 6113 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-21 01:40:07,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-11-21 01:40:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3909. [2021-11-21 01:40:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 2614 states have (on average 1.3982402448355011) internal successors, (3655), 2675 states have internal predecessors, (3655), 1162 states have call successors, (1162), 131 states have call predecessors, (1162), 130 states have return successors, (1158), 1158 states have call predecessors, (1158), 1158 states have call successors, (1158) [2021-11-21 01:40:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5975 transitions. [2021-11-21 01:40:07,861 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5975 transitions. Word has length 1065 [2021-11-21 01:40:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:07,868 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 5975 transitions. [2021-11-21 01:40:07,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-21 01:40:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5975 transitions. [2021-11-21 01:40:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2021-11-21 01:40:07,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:07,934 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:07,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:40:07,935 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 122745366, now seen corresponding path program 1 times [2021-11-21 01:40:07,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:07,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690810380] [2021-11-21 01:40:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:07,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:09,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:09,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690810380] [2021-11-21 01:40:09,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690810380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:09,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:09,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:09,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131098846] [2021-11-21 01:40:09,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:09,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:09,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:09,146 INFO L87 Difference]: Start difference. First operand 3909 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:11,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:16,354 INFO L93 Difference]: Finished difference Result 9401 states and 14366 transitions. [2021-11-21 01:40:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1069 [2021-11-21 01:40:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:16,414 INFO L225 Difference]: With dead ends: 9401 [2021-11-21 01:40:16,414 INFO L226 Difference]: Without dead ends: 5701 [2021-11-21 01:40:16,448 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:16,449 INFO L933 BasicCegarLoop]: 3331 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:16,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 6102 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 01:40:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2021-11-21 01:40:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5682. [2021-11-21 01:40:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 3814 states have (on average 1.401415836392239) internal successors, (5345), 3908 states have internal predecessors, (5345), 1667 states have call successors, (1667), 199 states have call predecessors, (1667), 198 states have return successors, (1663), 1658 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:40:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 8675 transitions. [2021-11-21 01:40:16,782 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 8675 transitions. Word has length 1069 [2021-11-21 01:40:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:16,785 INFO L470 AbstractCegarLoop]: Abstraction has 5682 states and 8675 transitions. [2021-11-21 01:40:16,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 8675 transitions. [2021-11-21 01:40:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-11-21 01:40:16,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:16,804 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:16,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:40:16,804 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:16,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash -131291127, now seen corresponding path program 1 times [2021-11-21 01:40:16,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:16,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043941574] [2021-11-21 01:40:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:16,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:17,985 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:17,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043941574] [2021-11-21 01:40:17,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043941574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:17,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:17,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:17,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574944277] [2021-11-21 01:40:17,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:17,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:17,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:17,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:17,994 INFO L87 Difference]: Start difference. First operand 5682 states and 8675 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:20,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:24,868 INFO L93 Difference]: Finished difference Result 14726 states and 22480 transitions. [2021-11-21 01:40:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1071 [2021-11-21 01:40:24,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:24,960 INFO L225 Difference]: With dead ends: 14726 [2021-11-21 01:40:24,961 INFO L226 Difference]: Without dead ends: 9253 [2021-11-21 01:40:25,006 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:25,011 INFO L933 BasicCegarLoop]: 3372 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:25,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6145 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 820 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-21 01:40:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2021-11-21 01:40:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 9234. [2021-11-21 01:40:25,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9234 states, 6220 states have (on average 1.4041800643086817) internal successors, (8734), 6380 states have internal predecessors, (8734), 2677 states have call successors, (2677), 335 states have call predecessors, (2677), 334 states have return successors, (2673), 2658 states have call predecessors, (2673), 2673 states have call successors, (2673) [2021-11-21 01:40:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9234 states to 9234 states and 14084 transitions. [2021-11-21 01:40:25,566 INFO L78 Accepts]: Start accepts. Automaton has 9234 states and 14084 transitions. Word has length 1071 [2021-11-21 01:40:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:25,568 INFO L470 AbstractCegarLoop]: Abstraction has 9234 states and 14084 transitions. [2021-11-21 01:40:25,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 9234 states and 14084 transitions. [2021-11-21 01:40:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2021-11-21 01:40:25,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:25,587 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:25,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:40:25,588 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1476955601, now seen corresponding path program 1 times [2021-11-21 01:40:25,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:25,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122538991] [2021-11-21 01:40:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:25,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:26,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:26,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122538991] [2021-11-21 01:40:26,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122538991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:26,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:26,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:26,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896447145] [2021-11-21 01:40:26,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:26,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:26,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:26,510 INFO L87 Difference]: Start difference. First operand 9234 states and 14084 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:28,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:33,293 INFO L93 Difference]: Finished difference Result 25326 states and 38623 transitions. [2021-11-21 01:40:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:33,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1070 [2021-11-21 01:40:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:33,438 INFO L225 Difference]: With dead ends: 25326 [2021-11-21 01:40:33,439 INFO L226 Difference]: Without dead ends: 16301 [2021-11-21 01:40:33,497 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:33,500 INFO L933 BasicCegarLoop]: 3419 mSDtfsCounter, 2783 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:33,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2783 Valid, 6190 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 832 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 01:40:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16301 states. [2021-11-21 01:40:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16301 to 16282. [2021-11-21 01:40:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 10992 states have (on average 1.4055676855895196) internal successors, (15450), 11284 states have internal predecessors, (15450), 4681 states have call successors, (4681), 607 states have call predecessors, (4681), 606 states have return successors, (4677), 4642 states have call predecessors, (4677), 4677 states have call successors, (4677) [2021-11-21 01:40:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 24808 transitions. [2021-11-21 01:40:34,326 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 24808 transitions. Word has length 1070 [2021-11-21 01:40:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:34,328 INFO L470 AbstractCegarLoop]: Abstraction has 16282 states and 24808 transitions. [2021-11-21 01:40:34,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 24808 transitions. [2021-11-21 01:40:34,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2021-11-21 01:40:34,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:34,347 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:34,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:40:34,348 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:34,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:34,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1016460577, now seen corresponding path program 1 times [2021-11-21 01:40:34,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:34,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435730544] [2021-11-21 01:40:34,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:34,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:35,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:35,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435730544] [2021-11-21 01:40:35,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435730544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:35,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:35,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:35,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873768079] [2021-11-21 01:40:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:35,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:35,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:35,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:35,463 INFO L87 Difference]: Start difference. First operand 16282 states and 24808 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:37,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:42,389 INFO L93 Difference]: Finished difference Result 46326 states and 70569 transitions. [2021-11-21 01:40:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1072 [2021-11-21 01:40:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:42,581 INFO L225 Difference]: With dead ends: 46326 [2021-11-21 01:40:42,582 INFO L226 Difference]: Without dead ends: 30253 [2021-11-21 01:40:42,690 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:42,694 INFO L933 BasicCegarLoop]: 3480 mSDtfsCounter, 2781 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:42,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2781 Valid, 6251 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 855 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-21 01:40:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30253 states. [2021-11-21 01:40:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30253 to 30234. [2021-11-21 01:40:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30234 states, 20440 states have (on average 1.405675146771037) internal successors, (28732), 20996 states have internal predecessors, (28732), 8641 states have call successors, (8641), 1151 states have call predecessors, (8641), 1150 states have return successors, (8637), 8562 states have call predecessors, (8637), 8637 states have call successors, (8637) [2021-11-21 01:40:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30234 states to 30234 states and 46010 transitions. [2021-11-21 01:40:44,283 INFO L78 Accepts]: Start accepts. Automaton has 30234 states and 46010 transitions. Word has length 1072 [2021-11-21 01:40:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:44,285 INFO L470 AbstractCegarLoop]: Abstraction has 30234 states and 46010 transitions. [2021-11-21 01:40:44,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 30234 states and 46010 transitions. [2021-11-21 01:40:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2021-11-21 01:40:44,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:44,304 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:44,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:40:44,304 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1738565183, now seen corresponding path program 1 times [2021-11-21 01:40:44,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:44,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460817462] [2021-11-21 01:40:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:44,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:45,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:45,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460817462] [2021-11-21 01:40:45,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460817462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:45,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:45,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:45,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399474151] [2021-11-21 01:40:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:45,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:45,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:45,434 INFO L87 Difference]: Start difference. First operand 30234 states and 46010 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:47,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:53,573 INFO L93 Difference]: Finished difference Result 87897 states and 133726 transitions. [2021-11-21 01:40:53,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:53,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1073 [2021-11-21 01:40:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:53,965 INFO L225 Difference]: With dead ends: 87897 [2021-11-21 01:40:53,966 INFO L226 Difference]: Without dead ends: 57872 [2021-11-21 01:40:54,391 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:40:54,391 INFO L933 BasicCegarLoop]: 3531 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:54,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6304 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 868 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-21 01:40:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57872 states. [2021-11-21 01:40:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57872 to 57853. [2021-11-21 01:40:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57853 states, 39163 states have (on average 1.4051783571227945) internal successors, (55031), 40247 states have internal predecessors, (55031), 16449 states have call successors, (16449), 2239 states have call predecessors, (16449), 2238 states have return successors, (16445), 16290 states have call predecessors, (16445), 16445 states have call successors, (16445) [2021-11-21 01:40:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57853 states to 57853 states and 87925 transitions. [2021-11-21 01:40:57,872 INFO L78 Accepts]: Start accepts. Automaton has 57853 states and 87925 transitions. Word has length 1073 [2021-11-21 01:40:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:57,874 INFO L470 AbstractCegarLoop]: Abstraction has 57853 states and 87925 transitions. [2021-11-21 01:40:57,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:40:57,874 INFO L276 IsEmpty]: Start isEmpty. Operand 57853 states and 87925 transitions. [2021-11-21 01:40:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2021-11-21 01:40:57,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:57,893 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:57,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:40:57,893 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:57,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1970604995, now seen corresponding path program 1 times [2021-11-21 01:40:57,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:57,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317379404] [2021-11-21 01:40:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:57,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:40:59,195 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:59,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317379404] [2021-11-21 01:40:59,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317379404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:59,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:59,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:59,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068518087] [2021-11-21 01:40:59,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:59,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:59,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:59,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:59,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:59,199 INFO L87 Difference]: Start difference. First operand 57853 states and 87925 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:41:01,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:08,980 INFO L93 Difference]: Finished difference Result 169002 states and 256832 transitions. [2021-11-21 01:41:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:08,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1074 [2021-11-21 01:41:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:09,580 INFO L225 Difference]: With dead ends: 169002 [2021-11-21 01:41:09,580 INFO L226 Difference]: Without dead ends: 111358 [2021-11-21 01:41:09,965 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:41:09,966 INFO L933 BasicCegarLoop]: 3709 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6482 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:09,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 6482 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 01:41:10,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111358 states. [2021-11-21 01:41:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111358 to 111339. [2021-11-21 01:41:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111339 states, 75379 states have (on average 1.4040249936985103) internal successors, (105834), 77519 states have internal predecessors, (105834), 31603 states have call successors, (31603), 4355 states have call predecessors, (31603), 4354 states have return successors, (31599), 31284 states have call predecessors, (31599), 31599 states have call successors, (31599) [2021-11-21 01:41:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111339 states to 111339 states and 169036 transitions. [2021-11-21 01:41:15,277 INFO L78 Accepts]: Start accepts. Automaton has 111339 states and 169036 transitions. Word has length 1074 [2021-11-21 01:41:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:15,279 INFO L470 AbstractCegarLoop]: Abstraction has 111339 states and 169036 transitions. [2021-11-21 01:41:15,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:41:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 111339 states and 169036 transitions. [2021-11-21 01:41:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2021-11-21 01:41:15,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:15,298 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:15,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:41:15,298 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:41:15,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:15,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1489232741, now seen corresponding path program 1 times [2021-11-21 01:41:15,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:15,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407077500] [2021-11-21 01:41:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:15,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-21 01:41:16,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:16,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407077500] [2021-11-21 01:41:16,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407077500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:16,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:16,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:16,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401719215] [2021-11-21 01:41:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:16,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:16,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:16,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:16,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:16,531 INFO L87 Difference]: Start difference. First operand 111339 states and 169036 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-21 01:41:18,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:30,037 INFO L93 Difference]: Finished difference Result 329016 states and 499277 transitions. [2021-11-21 01:41:30,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1075 [2021-11-21 01:41:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:31,334 INFO L225 Difference]: With dead ends: 329016 [2021-11-21 01:41:31,335 INFO L226 Difference]: Without dead ends: 217886 [2021-11-21 01:41:32,208 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:41:32,209 INFO L933 BasicCegarLoop]: 3762 mSDtfsCounter, 2778 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:32,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2778 Valid, 6533 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 916 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:41:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217886 states.