./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI --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 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:05:09,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:05:09,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:05:09,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:05:09,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:05:09,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:05:09,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:05:09,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:05:09,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:05:09,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:05:09,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:05:09,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:05:09,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:05:09,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:05:09,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:05:09,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:05:09,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:05:09,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:05:09,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:05:09,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:05:09,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:05:09,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:05:09,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:05:09,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:05:09,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:05:09,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:05:09,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:05:09,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:05:09,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:05:09,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:05:09,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:05:09,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:05:09,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:05:09,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:05:09,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:05:09,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:05:09,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:05:09,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:05:09,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:05:09,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:05:09,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:05:09,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:05:09,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:05:09,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:05:09,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:05:09,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:05:09,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:05:09,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:05:09,562 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:05:09,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:05:09,562 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:05:09,562 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:05:09,562 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:05:09,562 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:05:09,563 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:05:09,563 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:05:09,563 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:05:09,563 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:05:09,563 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:05:09,564 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:05:09,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:05:09,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:05:09,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:05:09,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:05:09,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:05:09,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:05:09,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:05:09,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:05:09,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:05:09,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:05:09,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:05:09,567 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:05:09,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:05:09,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:05:09,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:05:09,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2022-11-03 02:05:09,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:05:09,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:05:09,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:05:09,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:05:09,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:05:09,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-03 02:05:09,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/data/88bfccbf3/077e37b54c47437b854d44a0f86d7e61/FLAG308a52bef [2022-11-03 02:05:10,856 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:05:10,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-03 02:05:10,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/data/88bfccbf3/077e37b54c47437b854d44a0f86d7e61/FLAG308a52bef [2022-11-03 02:05:11,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/data/88bfccbf3/077e37b54c47437b854d44a0f86d7e61 [2022-11-03 02:05:11,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:05:11,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:05:11,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:05:11,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:05:11,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:05:11,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:05:11" (1/1) ... [2022-11-03 02:05:11,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1b5c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:11, skipping insertion in model container [2022-11-03 02:05:11,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:05:11" (1/1) ... [2022-11-03 02:05:11,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:05:11,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:05:13,742 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2022-11-03 02:05:13,746 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2022-11-03 02:05:13,746 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2022-11-03 02:05:13,747 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2022-11-03 02:05:13,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:05:13,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:05:14,275 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2022-11-03 02:05:14,276 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2022-11-03 02:05:14,276 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2022-11-03 02:05:14,277 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_5de14ba5-511e-47ce-9f50-72440c54ff1c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2022-11-03 02:05:14,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:05:14,447 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:05:14,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14 WrapperNode [2022-11-03 02:05:14,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:05:14,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:05:14,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:05:14,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:05:14,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:14,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,199 INFO L138 Inliner]: procedures = 340, calls = 1497, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4027 [2022-11-03 02:05:15,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:05:15,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:05:15,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:05:15,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:05:15,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:15,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:16,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:16,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:16,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:05:16,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:05:16,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:05:16,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:05:16,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (1/1) ... [2022-11-03 02:05:16,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:05:16,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:05:16,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:05:16,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de14ba5-511e-47ce-9f50-72440c54ff1c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:05:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:05:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:05:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:05:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:05:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:05:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-03 02:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-03 02:05:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2022-11-03 02:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2022-11-03 02:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2022-11-03 02:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2022-11-03 02:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2022-11-03 02:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2022-11-03 02:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2022-11-03 02:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2022-11-03 02:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 02:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 02:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2022-11-03 02:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2022-11-03 02:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2022-11-03 02:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2022-11-03 02:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2022-11-03 02:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2022-11-03 02:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2022-11-03 02:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2022-11-03 02:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2022-11-03 02:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2022-11-03 02:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-03 02:05:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-03 02:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 02:05:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 02:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:05:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2022-11-03 02:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2022-11-03 02:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-11-03 02:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-11-03 02:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-11-03 02:05:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-11-03 02:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:05:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:05:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-03 02:05:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-03 02:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2022-11-03 02:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2022-11-03 02:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2022-11-03 02:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2022-11-03 02:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2022-11-03 02:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2022-11-03 02:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2022-11-03 02:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2022-11-03 02:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 02:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 02:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2022-11-03 02:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2022-11-03 02:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2022-11-03 02:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2022-11-03 02:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2022-11-03 02:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2022-11-03 02:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2022-11-03 02:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2022-11-03 02:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2022-11-03 02:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2022-11-03 02:05:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2022-11-03 02:05:16,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2022-11-03 02:05:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2022-11-03 02:05:16,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2022-11-03 02:05:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2022-11-03 02:05:16,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2022-11-03 02:05:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:05:16,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:05:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2022-11-03 02:05:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2022-11-03 02:05:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:05:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:05:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:05:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:05:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:05:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 02:05:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 02:05:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:05:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2022-11-03 02:05:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:05:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:05:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:05:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-03 02:05:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-03 02:05:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:05:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:05:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:05:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:05:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2022-11-03 02:05:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2022-11-03 02:05:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 02:05:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 02:05:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2022-11-03 02:05:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2022-11-03 02:05:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:05:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:05:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-03 02:05:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-03 02:05:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:05:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:05:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:05:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:05:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2022-11-03 02:05:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2022-11-03 02:05:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2022-11-03 02:05:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2022-11-03 02:05:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:05:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-11-03 02:05:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-11-03 02:05:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2022-11-03 02:05:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2022-11-03 02:05:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-03 02:05:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-03 02:05:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:05:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:05:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:05:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:05:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:05:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:05:17,083 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:05:17,087 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:05:17,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:07:12,906 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:07:14,165 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:08:03,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:08:03,591 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:08:03,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:03 BoogieIcfgContainer [2022-11-03 02:08:03,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:08:03,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:08:03,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:08:03,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:08:03,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:05:11" (1/3) ... [2022-11-03 02:08:03,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360840d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:03, skipping insertion in model container [2022-11-03 02:08:03,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:05:14" (2/3) ... [2022-11-03 02:08:03,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360840d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:03, skipping insertion in model container [2022-11-03 02:08:03,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:03" (3/3) ... [2022-11-03 02:08:03,616 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-03 02:08:03,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:08:03,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:08:03,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:08:03,797 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@513ab85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:08:03,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:08:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 666 states have (on average 1.3273273273273274) internal successors, (884), 689 states have internal predecessors, (884), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2022-11-03 02:08:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 02:08:03,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:03,833 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:03,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:03,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:03,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1836371569, now seen corresponding path program 1 times [2022-11-03 02:08:03,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:03,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936016720] [2022-11-03 02:08:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:03,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-03 02:08:05,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936016720] [2022-11-03 02:08:05,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936016720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:05,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:05,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:05,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956064725] [2022-11-03 02:08:05,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:05,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:05,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:05,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:05,749 INFO L87 Difference]: Start difference. First operand has 1104 states, 666 states have (on average 1.3273273273273274) internal successors, (884), 689 states have internal predecessors, (884), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 02:08:07,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:11,647 INFO L93 Difference]: Finished difference Result 3134 states and 4649 transitions. [2022-11-03 02:08:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-11-03 02:08:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:11,688 INFO L225 Difference]: With dead ends: 3134 [2022-11-03 02:08:11,688 INFO L226 Difference]: Without dead ends: 2035 [2022-11-03 02:08:11,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:11,705 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1437 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:11,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 2991 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 02:08:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2022-11-03 02:08:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2016. [2022-11-03 02:08:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1227 states have (on average 1.321923390383048) internal successors, (1622), 1272 states have internal predecessors, (1622), 641 states have call successors, (641), 149 states have call predecessors, (641), 145 states have return successors, (679), 617 states have call predecessors, (679), 637 states have call successors, (679) [2022-11-03 02:08:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2942 transitions. [2022-11-03 02:08:12,007 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2942 transitions. Word has length 131 [2022-11-03 02:08:12,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:12,009 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2942 transitions. [2022-11-03 02:08:12,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 02:08:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2942 transitions. [2022-11-03 02:08:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:08:12,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:12,030 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 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] [2022-11-03 02:08:12,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:08:12,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:12,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:12,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1104741546, now seen corresponding path program 1 times [2022-11-03 02:08:12,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:12,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298838967] [2022-11-03 02:08:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-03 02:08:13,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:13,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298838967] [2022-11-03 02:08:13,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298838967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:13,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:13,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:13,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987505728] [2022-11-03 02:08:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:13,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:13,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:13,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:13,073 INFO L87 Difference]: Start difference. First operand 2016 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 02:08:15,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:19,058 INFO L93 Difference]: Finished difference Result 5915 states and 8631 transitions. [2022-11-03 02:08:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:19,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2022-11-03 02:08:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:19,095 INFO L225 Difference]: With dead ends: 5915 [2022-11-03 02:08:19,096 INFO L226 Difference]: Without dead ends: 3922 [2022-11-03 02:08:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:19,111 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1464 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:19,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 2911 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 02:08:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2022-11-03 02:08:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3918. [2022-11-03 02:08:19,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 2402 states have (on average 1.3201498751040799) internal successors, (3171), 2484 states have internal predecessors, (3171), 1226 states have call successors, (1226), 294 states have call predecessors, (1226), 287 states have return successors, (1306), 1185 states have call predecessors, (1306), 1222 states have call successors, (1306) [2022-11-03 02:08:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5703 transitions. [2022-11-03 02:08:19,347 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5703 transitions. Word has length 135 [2022-11-03 02:08:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:19,348 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 5703 transitions. [2022-11-03 02:08:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 02:08:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5703 transitions. [2022-11-03 02:08:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 02:08:19,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:19,353 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:19,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:08:19,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:19,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash -532134367, now seen corresponding path program 1 times [2022-11-03 02:08:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:19,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351781126] [2022-11-03 02:08:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:19,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-03 02:08:20,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:20,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351781126] [2022-11-03 02:08:20,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351781126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:20,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:20,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:20,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876253108] [2022-11-03 02:08:20,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:20,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:20,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:20,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:20,188 INFO L87 Difference]: Start difference. First operand 3918 states and 5703 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:08:22,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:28,262 INFO L93 Difference]: Finished difference Result 11272 states and 16329 transitions. [2022-11-03 02:08:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:28,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-11-03 02:08:28,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:28,319 INFO L225 Difference]: With dead ends: 11272 [2022-11-03 02:08:28,319 INFO L226 Difference]: Without dead ends: 7377 [2022-11-03 02:08:28,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:28,345 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 1324 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:28,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 2997 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 590 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 02:08:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7377 states. [2022-11-03 02:08:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7377 to 7352. [2022-11-03 02:08:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 4474 states have (on average 1.2988377291014752) internal successors, (5811), 4644 states have internal predecessors, (5811), 2306 states have call successors, (2306), 582 states have call predecessors, (2306), 569 states have return successors, (2406), 2217 states have call predecessors, (2406), 2302 states have call successors, (2406) [2022-11-03 02:08:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 10523 transitions. [2022-11-03 02:08:28,923 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 10523 transitions. Word has length 133 [2022-11-03 02:08:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:28,924 INFO L495 AbstractCegarLoop]: Abstraction has 7352 states and 10523 transitions. [2022-11-03 02:08:28,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:08:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 10523 transitions. [2022-11-03 02:08:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-03 02:08:28,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:28,927 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:28,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:08:28,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1949411335, now seen corresponding path program 1 times [2022-11-03 02:08:28,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:28,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830692975] [2022-11-03 02:08:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:28,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-03 02:08:29,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830692975] [2022-11-03 02:08:29,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830692975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:29,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:29,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:29,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358353268] [2022-11-03 02:08:29,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:29,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:29,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:29,702 INFO L87 Difference]: Start difference. First operand 7352 states and 10523 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:08:31,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:35,709 INFO L93 Difference]: Finished difference Result 17756 states and 25319 transitions. [2022-11-03 02:08:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-11-03 02:08:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:35,799 INFO L225 Difference]: With dead ends: 17756 [2022-11-03 02:08:35,803 INFO L226 Difference]: Without dead ends: 10427 [2022-11-03 02:08:35,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:35,845 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 1418 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:35,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 2924 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 02:08:35,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10427 states. [2022-11-03 02:08:36,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10427 to 10402. [2022-11-03 02:08:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10402 states, 6318 states have (on average 1.2841088952200064) internal successors, (8113), 6566 states have internal predecessors, (8113), 3234 states have call successors, (3234), 866 states have call predecessors, (3234), 847 states have return successors, (3378), 3091 states have call predecessors, (3378), 3230 states have call successors, (3378) [2022-11-03 02:08:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10402 states to 10402 states and 14725 transitions. [2022-11-03 02:08:36,452 INFO L78 Accepts]: Start accepts. Automaton has 10402 states and 14725 transitions. Word has length 134 [2022-11-03 02:08:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:36,453 INFO L495 AbstractCegarLoop]: Abstraction has 10402 states and 14725 transitions. [2022-11-03 02:08:36,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:08:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 10402 states and 14725 transitions. [2022-11-03 02:08:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-03 02:08:36,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:36,456 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:36,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:08:36,457 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1156232625, now seen corresponding path program 1 times [2022-11-03 02:08:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:36,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025400211] [2022-11-03 02:08:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-03 02:08:38,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:38,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025400211] [2022-11-03 02:08:38,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025400211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:38,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:38,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:08:38,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887922043] [2022-11-03 02:08:38,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:38,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:08:38,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:08:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:08:38,126 INFO L87 Difference]: Start difference. First operand 10402 states and 14725 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:08:40,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:54,783 INFO L93 Difference]: Finished difference Result 41025 states and 58566 transitions. [2022-11-03 02:08:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:08:54,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2022-11-03 02:08:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:54,998 INFO L225 Difference]: With dead ends: 41025 [2022-11-03 02:08:54,998 INFO L226 Difference]: Without dead ends: 30646 [2022-11-03 02:08:55,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:08:55,050 INFO L413 NwaCegarLoop]: 2020 mSDtfsCounter, 5906 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 2103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6002 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 4043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2103 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:55,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6002 Valid, 4493 Invalid, 4043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2103 Valid, 1939 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2022-11-03 02:08:55,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30646 states. [2022-11-03 02:08:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30646 to 30274. [2022-11-03 02:08:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30274 states, 18354 states have (on average 1.2828266317968835) internal successors, (23545), 19166 states have internal predecessors, (23545), 9426 states have call successors, (9426), 2570 states have call predecessors, (9426), 2491 states have return successors, (10386), 8903 states have call predecessors, (10386), 9422 states have call successors, (10386) [2022-11-03 02:08:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30274 states to 30274 states and 43357 transitions. [2022-11-03 02:08:57,121 INFO L78 Accepts]: Start accepts. Automaton has 30274 states and 43357 transitions. Word has length 140 [2022-11-03 02:08:57,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:57,123 INFO L495 AbstractCegarLoop]: Abstraction has 30274 states and 43357 transitions. [2022-11-03 02:08:57,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:08:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 30274 states and 43357 transitions. [2022-11-03 02:08:57,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-03 02:08:57,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:57,129 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:08:57,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:57,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:57,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1329762001, now seen corresponding path program 1 times [2022-11-03 02:08:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:57,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982087450] [2022-11-03 02:08:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:57,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-03 02:08:57,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:57,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982087450] [2022-11-03 02:08:57,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982087450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:57,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:57,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:57,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179837332] [2022-11-03 02:08:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:57,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:57,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:57,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:57,861 INFO L87 Difference]: Start difference. First operand 30274 states and 43357 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:08:59,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:05,118 INFO L93 Difference]: Finished difference Result 72990 states and 104276 transitions. [2022-11-03 02:09:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:05,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2022-11-03 02:09:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:05,379 INFO L225 Difference]: With dead ends: 72990 [2022-11-03 02:09:05,379 INFO L226 Difference]: Without dead ends: 42739 [2022-11-03 02:09:05,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:05,504 INFO L413 NwaCegarLoop]: 1792 mSDtfsCounter, 1433 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:05,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 3083 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 580 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 02:09:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42739 states. [2022-11-03 02:09:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42739 to 42674. [2022-11-03 02:09:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42674 states, 25978 states have (on average 1.277850488875202) internal successors, (33196), 27195 states have internal predecessors, (33196), 13104 states have call successors, (13104), 3693 states have call predecessors, (13104), 3589 states have return successors, (14288), 12326 states have call predecessors, (14288), 13100 states have call successors, (14288) [2022-11-03 02:09:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42674 states to 42674 states and 60588 transitions. [2022-11-03 02:09:07,847 INFO L78 Accepts]: Start accepts. Automaton has 42674 states and 60588 transitions. Word has length 153 [2022-11-03 02:09:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 42674 states and 60588 transitions. [2022-11-03 02:09:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:09:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 42674 states and 60588 transitions. [2022-11-03 02:09:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 02:09:07,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:07,852 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:07,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:09:07,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:09:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1547051652, now seen corresponding path program 1 times [2022-11-03 02:09:07,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:07,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290375741] [2022-11-03 02:09:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:07,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-03 02:09:10,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:10,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290375741] [2022-11-03 02:09:10,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290375741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:10,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:10,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392935125] [2022-11-03 02:09:10,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:10,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:10,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:10,222 INFO L87 Difference]: Start difference. First operand 42674 states and 60588 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:09:12,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:18,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:18,163 INFO L93 Difference]: Finished difference Result 42680 states and 60593 transitions. [2022-11-03 02:09:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:18,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 178 [2022-11-03 02:09:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:18,394 INFO L225 Difference]: With dead ends: 42680 [2022-11-03 02:09:18,394 INFO L226 Difference]: Without dead ends: 42678 [2022-11-03 02:09:18,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:18,413 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 1513 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:18,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 3934 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 737 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:09:18,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42678 states. [2022-11-03 02:09:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42678 to 42678. [2022-11-03 02:09:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42678 states, 25981 states have (on average 1.277818405758054) internal successors, (33199), 27198 states have internal predecessors, (33199), 13104 states have call successors, (13104), 3694 states have call predecessors, (13104), 3590 states have return successors, (14288), 12326 states have call predecessors, (14288), 13100 states have call successors, (14288) [2022-11-03 02:09:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42678 states to 42678 states and 60591 transitions. [2022-11-03 02:09:20,919 INFO L78 Accepts]: Start accepts. Automaton has 42678 states and 60591 transitions. Word has length 178 [2022-11-03 02:09:20,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:20,924 INFO L495 AbstractCegarLoop]: Abstraction has 42678 states and 60591 transitions. [2022-11-03 02:09:20,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:09:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 42678 states and 60591 transitions. [2022-11-03 02:09:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-03 02:09:20,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:20,929 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:20,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:09:20,930 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:09:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1060984614, now seen corresponding path program 1 times [2022-11-03 02:09:20,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:20,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089094109] [2022-11-03 02:09:20,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:20,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:23,019 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-03 02:09:23,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:23,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089094109] [2022-11-03 02:09:23,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089094109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:23,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:23,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:23,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377479002] [2022-11-03 02:09:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:23,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:23,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:23,022 INFO L87 Difference]: Start difference. First operand 42678 states and 60591 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:09:25,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:30,734 INFO L93 Difference]: Finished difference Result 42684 states and 60596 transitions. [2022-11-03 02:09:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:30,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2022-11-03 02:09:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:30,937 INFO L225 Difference]: With dead ends: 42684 [2022-11-03 02:09:30,938 INFO L226 Difference]: Without dead ends: 42682 [2022-11-03 02:09:30,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:30,957 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 1509 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:30,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 3937 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 737 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:09:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42682 states. [2022-11-03 02:09:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42682 to 42682. [2022-11-03 02:09:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42682 states, 25984 states have (on average 1.2777863300492611) internal successors, (33202), 27201 states have internal predecessors, (33202), 13104 states have call successors, (13104), 3695 states have call predecessors, (13104), 3591 states have return successors, (14288), 12326 states have call predecessors, (14288), 13100 states have call successors, (14288) [2022-11-03 02:09:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42682 states to 42682 states and 60594 transitions. [2022-11-03 02:09:33,590 INFO L78 Accepts]: Start accepts. Automaton has 42682 states and 60594 transitions. Word has length 182 [2022-11-03 02:09:33,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:33,591 INFO L495 AbstractCegarLoop]: Abstraction has 42682 states and 60594 transitions. [2022-11-03 02:09:33,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:09:33,592 INFO L276 IsEmpty]: Start isEmpty. Operand 42682 states and 60594 transitions. [2022-11-03 02:09:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-03 02:09:33,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:33,596 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:33,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:09:33,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:09:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -417827268, now seen corresponding path program 1 times [2022-11-03 02:09:33,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:33,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928615688] [2022-11-03 02:09:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:33,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2022-11-03 02:09:35,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:35,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928615688] [2022-11-03 02:09:35,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928615688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:35,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:35,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850760119] [2022-11-03 02:09:35,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:35,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:35,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:35,863 INFO L87 Difference]: Start difference. First operand 42682 states and 60594 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:09:37,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:45,751 INFO L93 Difference]: Finished difference Result 47743 states and 66114 transitions. [2022-11-03 02:09:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:45,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 188 [2022-11-03 02:09:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:45,952 INFO L225 Difference]: With dead ends: 47743 [2022-11-03 02:09:45,952 INFO L226 Difference]: Without dead ends: 47739 [2022-11-03 02:09:45,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:45,976 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 1104 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:45,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 4570 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 826 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-03 02:09:46,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47739 states. [2022-11-03 02:09:48,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47739 to 47739. [2022-11-03 02:09:48,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47739 states, 28676 states have (on average 1.2646115218301017) internal successors, (36264), 29938 states have internal predecessors, (36264), 14331 states have call successors, (14331), 4855 states have call predecessors, (14331), 4729 states have return successors, (15515), 13532 states have call predecessors, (15515), 14327 states have call successors, (15515) [2022-11-03 02:09:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47739 states to 47739 states and 66110 transitions. [2022-11-03 02:09:48,722 INFO L78 Accepts]: Start accepts. Automaton has 47739 states and 66110 transitions. Word has length 188 [2022-11-03 02:09:48,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:48,723 INFO L495 AbstractCegarLoop]: Abstraction has 47739 states and 66110 transitions. [2022-11-03 02:09:48,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:09:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 47739 states and 66110 transitions. [2022-11-03 02:09:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-03 02:09:48,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:48,728 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:09:48,729 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:09:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash 435233340, now seen corresponding path program 1 times [2022-11-03 02:09:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:48,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021048399] [2022-11-03 02:09:48,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2022-11-03 02:09:50,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:50,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021048399] [2022-11-03 02:09:50,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021048399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:50,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:50,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:50,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537672909] [2022-11-03 02:09:50,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:50,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:50,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:50,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:50,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:50,502 INFO L87 Difference]: Start difference. First operand 47739 states and 66110 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:09:52,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:58,661 INFO L93 Difference]: Finished difference Result 47739 states and 66110 transitions. [2022-11-03 02:09:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2022-11-03 02:09:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:58,824 INFO L225 Difference]: With dead ends: 47739 [2022-11-03 02:09:58,824 INFO L226 Difference]: Without dead ends: 47284 [2022-11-03 02:09:58,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:09:58,840 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 1504 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:58,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 3934 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 02:09:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47284 states.