./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-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- 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 02:46:05,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:46:05,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:46:05,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:46:05,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:46:05,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:46:06,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:46:06,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:46:06,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:46:06,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:46:06,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:46:06,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:46:06,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:46:06,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:46:06,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:46:06,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:46:06,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:46:06,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:46:06,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:46:06,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:46:06,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:46:06,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:46:06,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:46:06,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:46:06,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:46:06,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:46:06,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:46:06,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:46:06,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:46:06,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:46:06,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:46:06,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:46:06,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:46:06,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:46:06,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:46:06,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:46:06,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:46:06,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:46:06,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:46:06,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:46:06,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:46:06,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:46:06,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:46:06,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:46:06,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:46:06,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:46:06,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:46:06,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:46:06,077 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:46:06,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:46:06,077 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:46:06,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:46:06,078 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:46:06,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:46:06,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:46:06,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:46:06,078 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:46:06,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:46:06,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:46:06,079 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:46:06,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:46:06,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:46:06,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:46:06,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:46:06,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:46:06,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:46:06,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:46:06,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:46:06,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:46:06,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:46:06,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:46:06,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:46:06,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:46:06,082 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:46:06,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:46:06,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:46:06,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:46:06,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:46:06,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:46:06,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:46:06,083 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2022-11-03 02:46:06,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:46:06,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:46:06,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:46:06,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:46:06,439 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:46:06,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-03 02:46:06,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/data/cf06e6a44/fd53e1a23b894068a16f2e4e3bd4047e/FLAGb805447b1 [2022-11-03 02:46:07,480 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:46:07,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-03 02:46:07,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/data/cf06e6a44/fd53e1a23b894068a16f2e4e3bd4047e/FLAGb805447b1 [2022-11-03 02:46:07,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/data/cf06e6a44/fd53e1a23b894068a16f2e4e3bd4047e [2022-11-03 02:46:07,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:46:07,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:46:07,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:46:07,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:46:07,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:46:07,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:46:07" (1/1) ... [2022-11-03 02:46:07,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60233aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:07, skipping insertion in model container [2022-11-03 02:46:07,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:46:07" (1/1) ... [2022-11-03 02:46:07,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:46:08,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:46:12,825 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2022-11-03 02:46:12,829 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2022-11-03 02:46:12,830 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2022-11-03 02:46:12,830 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2022-11-03 02:46:12,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:46:12,934 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:46:13,474 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2022-11-03 02:46:13,475 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2022-11-03 02:46:13,476 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2022-11-03 02:46:13,476 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_5a96f7c6-0ee4-429d-901d-e582eaeb3764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2022-11-03 02:46:13,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:46:13,839 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:46:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13 WrapperNode [2022-11-03 02:46:13,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:46:13,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:46:13,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:46:13,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:46:13,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,290 INFO L138 Inliner]: procedures = 625, calls = 3468, calls flagged for inlining = 312, calls inlined = 276, statements flattened = 8002 [2022-11-03 02:46:14,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:46:14,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:46:14,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:46:14,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:46:14,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:46:14,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:46:14,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:46:14,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:46:14,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (1/1) ... [2022-11-03 02:46:14,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:46:14,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:46:14,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:46:14,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a96f7c6-0ee4-429d-901d-e582eaeb3764/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:46:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:46:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:46:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:46:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:46:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-03 02:46:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-03 02:46:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:46:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:46:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-03 02:46:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-03 02:46:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 02:46:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 02:46:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:46:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:46:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2022-11-03 02:46:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2022-11-03 02:46:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:46:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:46:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-03 02:46:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-03 02:46:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-03 02:46:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-03 02:46:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_78 [2022-11-03 02:46:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_78 [2022-11-03 02:46:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:46:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:46:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:46:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:46:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:46:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:46:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:46:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:46:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:46:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:46:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-03 02:46:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-03 02:46:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2022-11-03 02:46:14,864 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2022-11-03 02:46:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-03 02:46:14,864 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-03 02:46:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2022-11-03 02:46:14,865 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2022-11-03 02:46:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:46:14,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:46:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:46:14,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:46:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-03 02:46:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-03 02:46:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:46:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:46:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:46:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:46:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:46:14,868 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:46:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:46:14,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:46:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:46:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:46:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-03 02:46:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-03 02:46:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:46:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:46:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:46:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:46:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:46:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 02:46:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 02:46:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-03 02:46:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-03 02:46:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:46:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:46:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-03 02:46:14,872 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-03 02:46:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:46:14,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:46:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:46:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:46:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:46:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:46:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:46:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-03 02:46:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-03 02:46:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:46:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:46:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:46:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:46:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-03 02:46:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-03 02:46:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:46:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:46:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:46:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:46:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:46:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:46:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:46:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:46:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:46:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:46:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:46:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:46:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:46:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:46:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-03 02:46:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-03 02:46:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:46:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:46:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-03 02:46:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-03 02:46:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:46:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:46:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:46:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:46:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-03 02:46:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-03 02:46:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:46:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:46:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:46:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-03 02:46:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-03 02:46:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:46:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:46:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:46:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:46:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:46:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:46:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:46:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:46:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:46:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:46:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:46:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:46:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:46:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 02:46:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 02:46:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 02:46:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 02:46:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-03 02:46:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-03 02:46:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-03 02:46:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-03 02:46:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:46:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:46:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-11-03 02:46:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-11-03 02:46:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:46:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:46:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:46:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:46:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:46:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:46:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:46:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:46:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-03 02:46:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-03 02:46:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:46:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:46:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:46:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:46:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:46:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:46:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-03 02:46:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-03 02:46:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 02:46:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 02:46:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-03 02:46:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-03 02:46:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:46:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:46:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:46:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:46:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:46:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:46:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:46:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:46:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:46:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:46:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:46:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:46:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:46:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:46:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:46:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:46:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-03 02:46:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-03 02:46:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:46:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:46:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:46:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:46:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-03 02:46:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-03 02:46:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-03 02:46:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-03 02:46:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:46:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:46:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:46:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:46:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:46:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:46:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-03 02:46:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-03 02:46:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:46:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:46:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:46:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:46:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-03 02:46:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-03 02:46:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:46:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:46:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:46:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:46:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:46:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:46:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:46:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:46:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:46:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:46:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:46:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-03 02:46:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-03 02:46:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:46:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-03 02:46:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-03 02:46:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-03 02:46:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-03 02:46:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:46:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:46:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-03 02:46:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-03 02:46:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:46:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-03 02:46:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-03 02:46:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:46:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:46:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:46:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:46:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:46:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:46:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:46:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:46:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:46:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:46:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:46:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:46:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-03 02:46:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-03 02:46:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-03 02:46:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-03 02:46:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-03 02:46:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-03 02:46:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-03 02:46:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-03 02:46:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:46:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:46:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:46:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:46:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2022-11-03 02:46:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2022-11-03 02:46:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:46:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:46:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:46:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:46:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-03 02:46:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-03 02:46:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:46:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:46:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:46:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-03 02:46:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-03 02:46:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:46:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:46:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-03 02:46:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-03 02:46:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-03 02:46:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-03 02:46:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-03 02:46:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-03 02:46:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:46:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:46:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:46:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:46:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2022-11-03 02:46:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2022-11-03 02:46:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:46:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:46:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-03 02:46:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-03 02:46:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 02:46:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 02:46:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:46:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:46:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:46:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:46:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:46:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:46:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-03 02:46:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-03 02:46:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:46:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:46:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:46:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:46:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-03 02:46:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-03 02:46:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 02:46:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 02:46:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:46:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:46:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:46:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-03 02:46:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-03 02:46:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:46:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:46:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-03 02:46:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-03 02:46:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-03 02:46:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-03 02:46:16,060 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:46:16,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:46:16,437 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:46:29,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:46:30,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:46:32,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:46:32,152 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:46:32,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:46:32 BoogieIcfgContainer [2022-11-03 02:46:32,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:46:32,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:46:32,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:46:32,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:46:32,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:46:07" (1/3) ... [2022-11-03 02:46:32,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c120403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:46:32, skipping insertion in model container [2022-11-03 02:46:32,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:13" (2/3) ... [2022-11-03 02:46:32,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c120403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:46:32, skipping insertion in model container [2022-11-03 02:46:32,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:46:32" (3/3) ... [2022-11-03 02:46:32,171 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-03 02:46:32,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:46:32,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 02:46:32,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:46:32,320 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;@3b5056c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:46:32,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-03 02:46:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 2192 states, 1279 states have (on average 1.2791243158717749) internal successors, (1636), 1307 states have internal predecessors, (1636), 761 states have call successors, (761), 149 states have call predecessors, (761), 148 states have return successors, (755), 753 states have call predecessors, (755), 755 states have call successors, (755) [2022-11-03 02:46:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-03 02:46:32,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:32,354 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:32,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:46:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:32,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1010132374, now seen corresponding path program 1 times [2022-11-03 02:46:32,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:46:32,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612310067] [2022-11-03 02:46:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:46:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:46:33,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:46:33,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612310067] [2022-11-03 02:46:33,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612310067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:33,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:33,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102486453] [2022-11-03 02:46:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:33,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:46:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:46:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:46:33,565 INFO L87 Difference]: Start difference. First operand has 2192 states, 1279 states have (on average 1.2791243158717749) internal successors, (1636), 1307 states have internal predecessors, (1636), 761 states have call successors, (761), 149 states have call predecessors, (761), 148 states have return successors, (755), 753 states have call predecessors, (755), 755 states have call successors, (755) 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:46:36,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:39,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:41,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:43,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:44,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:45,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:45,608 INFO L93 Difference]: Finished difference Result 6341 states and 9211 transitions. [2022-11-03 02:46:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:46:45,611 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-03 02:46:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:45,661 INFO L225 Difference]: With dead ends: 6341 [2022-11-03 02:46:45,661 INFO L226 Difference]: Without dead ends: 4163 [2022-11-03 02:46:45,681 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 02:46:45,687 INFO L413 NwaCegarLoop]: 3468 mSDtfsCounter, 2935 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2935 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:45,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2935 Valid, 6151 Invalid, 767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 762 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-11-03 02:46:45,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2022-11-03 02:46:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4128. [2022-11-03 02:46:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4128 states, 2434 states have (on average 1.278964667214462) internal successors, (3113), 2495 states have internal predecessors, (3113), 1408 states have call successors, (1408), 288 states have call predecessors, (1408), 282 states have return successors, (1409), 1383 states have call predecessors, (1409), 1404 states have call successors, (1409) [2022-11-03 02:46:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4128 states to 4128 states and 5930 transitions. [2022-11-03 02:46:46,089 INFO L78 Accepts]: Start accepts. Automaton has 4128 states and 5930 transitions. Word has length 161 [2022-11-03 02:46:46,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:46,093 INFO L495 AbstractCegarLoop]: Abstraction has 4128 states and 5930 transitions. [2022-11-03 02:46:46,094 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:46:46,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4128 states and 5930 transitions. [2022-11-03 02:46:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-03 02:46:46,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:46,106 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:46,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:46:46,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:46:46,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:46,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1581564071, now seen corresponding path program 1 times [2022-11-03 02:46:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:46:46,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029299094] [2022-11-03 02:46:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:46,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:46:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:46:46,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:46:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029299094] [2022-11-03 02:46:46,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029299094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:46,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:46,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860060074] [2022-11-03 02:46:46,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:46,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:46:46,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:46:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:46:46,686 INFO L87 Difference]: Start difference. First operand 4128 states and 5930 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:46:48,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:51,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:46:54,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:56,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:58,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:01,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:04,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:04,821 INFO L93 Difference]: Finished difference Result 12131 states and 17414 transitions. [2022-11-03 02:47:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:04,822 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-03 02:47:04,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:04,885 INFO L225 Difference]: With dead ends: 12131 [2022-11-03 02:47:04,885 INFO L226 Difference]: Without dead ends: 8032 [2022-11-03 02:47:04,908 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 02:47:04,910 INFO L413 NwaCegarLoop]: 3411 mSDtfsCounter, 2850 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 6119 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:04,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 6119 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 779 Invalid, 6 Unknown, 0 Unchecked, 17.7s Time] [2022-11-03 02:47:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8032 states. [2022-11-03 02:47:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8032 to 8024. [2022-11-03 02:47:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8024 states, 4757 states have (on average 1.2789573260458271) internal successors, (6084), 4870 states have internal predecessors, (6084), 2709 states have call successors, (2709), 565 states have call predecessors, (2709), 554 states have return successors, (2715), 2665 states have call predecessors, (2715), 2705 states have call successors, (2715) [2022-11-03 02:47:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8024 states to 8024 states and 11508 transitions. [2022-11-03 02:47:05,528 INFO L78 Accepts]: Start accepts. Automaton has 8024 states and 11508 transitions. Word has length 161 [2022-11-03 02:47:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:05,531 INFO L495 AbstractCegarLoop]: Abstraction has 8024 states and 11508 transitions. [2022-11-03 02:47:05,532 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:47:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 8024 states and 11508 transitions. [2022-11-03 02:47:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-03 02:47:05,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:05,538 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:05,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:47:05,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:47:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1208042098, now seen corresponding path program 1 times [2022-11-03 02:47:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:05,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756286226] [2022-11-03 02:47:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:47:05,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:05,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756286226] [2022-11-03 02:47:05,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756286226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:05,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:05,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995945900] [2022-11-03 02:47:05,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:05,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:05,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:05,949 INFO L87 Difference]: Start difference. First operand 8024 states and 11508 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:08,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:11,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:14,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:16,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:17,640 INFO L93 Difference]: Finished difference Result 23828 states and 34227 transitions. [2022-11-03 02:47:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 174 [2022-11-03 02:47:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:17,759 INFO L225 Difference]: With dead ends: 23828 [2022-11-03 02:47:17,760 INFO L226 Difference]: Without dead ends: 15833 [2022-11-03 02:47:17,802 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 02:47:17,803 INFO L413 NwaCegarLoop]: 3666 mSDtfsCounter, 2939 mSDsluCounter, 3081 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:17,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 6375 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 797 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-11-03 02:47:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15833 states. [2022-11-03 02:47:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15833 to 15792. [2022-11-03 02:47:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15792 states, 9390 states have (on average 1.279978700745474) internal successors, (12019), 9621 states have internal predecessors, (12019), 5310 states have call successors, (5310), 1117 states have call predecessors, (5310), 1088 states have return successors, (5369), 5199 states have call predecessors, (5369), 5306 states have call successors, (5369) [2022-11-03 02:47:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15792 states to 15792 states and 22698 transitions. [2022-11-03 02:47:18,935 INFO L78 Accepts]: Start accepts. Automaton has 15792 states and 22698 transitions. Word has length 174 [2022-11-03 02:47:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:18,937 INFO L495 AbstractCegarLoop]: Abstraction has 15792 states and 22698 transitions. [2022-11-03 02:47:18,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:18,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15792 states and 22698 transitions. [2022-11-03 02:47:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-03 02:47:18,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:18,944 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 14, 14, 14, 14, 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] [2022-11-03 02:47:18,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:47:18,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:47:18,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:18,946 INFO L85 PathProgramCache]: Analyzing trace with hash -370441076, now seen corresponding path program 1 times [2022-11-03 02:47:18,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:18,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303065969] [2022-11-03 02:47:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:18,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-03 02:47:19,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:19,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303065969] [2022-11-03 02:47:19,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303065969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:19,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:19,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:19,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209637845] [2022-11-03 02:47:19,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:19,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:19,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:19,308 INFO L87 Difference]: Start difference. First operand 15792 states and 22698 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:21,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:24,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:29,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:31,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:32,235 INFO L93 Difference]: Finished difference Result 35663 states and 51231 transitions. [2022-11-03 02:47:32,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:32,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 179 [2022-11-03 02:47:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:32,340 INFO L225 Difference]: With dead ends: 35663 [2022-11-03 02:47:32,340 INFO L226 Difference]: Without dead ends: 19900 [2022-11-03 02:47:32,406 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 02:47:32,411 INFO L413 NwaCegarLoop]: 3448 mSDtfsCounter, 2916 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 6187 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:32,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 6187 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 768 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 02:47:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19900 states. [2022-11-03 02:47:33,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19900 to 19860. [2022-11-03 02:47:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19860 states, 11791 states have (on average 1.2791959969468238) internal successors, (15083), 12090 states have internal predecessors, (15083), 6681 states have call successors, (6681), 1416 states have call predecessors, (6681), 1384 states have return successors, (6749), 6539 states have call predecessors, (6749), 6677 states have call successors, (6749) [2022-11-03 02:47:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19860 states to 19860 states and 28513 transitions. [2022-11-03 02:47:33,718 INFO L78 Accepts]: Start accepts. Automaton has 19860 states and 28513 transitions. Word has length 179 [2022-11-03 02:47:33,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:33,719 INFO L495 AbstractCegarLoop]: Abstraction has 19860 states and 28513 transitions. [2022-11-03 02:47:33,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 19860 states and 28513 transitions. [2022-11-03 02:47:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 02:47:33,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:33,724 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:33,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:47:33,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:47:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 745362516, now seen corresponding path program 1 times [2022-11-03 02:47:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:33,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322390553] [2022-11-03 02:47:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-03 02:47:34,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:34,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322390553] [2022-11-03 02:47:34,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322390553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:34,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:34,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693480016] [2022-11-03 02:47:34,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:34,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:34,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:34,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:34,306 INFO L87 Difference]: Start difference. First operand 19860 states and 28513 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:36,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:39,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:42,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:45,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:46,834 INFO L93 Difference]: Finished difference Result 48639 states and 69410 transitions. [2022-11-03 02:47:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:46,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-11-03 02:47:46,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:47,000 INFO L225 Difference]: With dead ends: 48639 [2022-11-03 02:47:47,000 INFO L226 Difference]: Without dead ends: 28808 [2022-11-03 02:47:47,070 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 02:47:47,071 INFO L413 NwaCegarLoop]: 3234 mSDtfsCounter, 1836 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 5911 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:47,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 5911 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 817 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2022-11-03 02:47:47,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28808 states. [2022-11-03 02:47:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28808 to 28763. [2022-11-03 02:47:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28763 states, 16938 states have (on average 1.2646121147715197) internal successors, (21420), 17413 states have internal predecessors, (21420), 9634 states have call successors, (9634), 2250 states have call predecessors, (9634), 2187 states have return successors, (9777), 9371 states have call predecessors, (9777), 9630 states have call successors, (9777) [2022-11-03 02:47:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28763 states to 28763 states and 40831 transitions. [2022-11-03 02:47:49,212 INFO L78 Accepts]: Start accepts. Automaton has 28763 states and 40831 transitions. Word has length 183 [2022-11-03 02:47:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:49,214 INFO L495 AbstractCegarLoop]: Abstraction has 28763 states and 40831 transitions. [2022-11-03 02:47:49,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand 28763 states and 40831 transitions. [2022-11-03 02:47:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-03 02:47:49,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:49,219 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:49,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:47:49,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:47:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash -77287633, now seen corresponding path program 1 times [2022-11-03 02:47:49,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:49,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920415903] [2022-11-03 02:47:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:49,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2022-11-03 02:47:50,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:50,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920415903] [2022-11-03 02:47:50,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920415903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:50,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:50,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:50,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343033762] [2022-11-03 02:47:50,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:50,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:47:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:47:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:50,072 INFO L87 Difference]: Start difference. First operand 28763 states and 40831 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 02:47:52,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:54,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:56,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:59,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:02,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:07,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:08,847 INFO L93 Difference]: Finished difference Result 42740 states and 60269 transitions. [2022-11-03 02:48:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 203 [2022-11-03 02:48:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:09,164 INFO L225 Difference]: With dead ends: 42740 [2022-11-03 02:48:09,165 INFO L226 Difference]: Without dead ends: 42738 [2022-11-03 02:48:09,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:48:09,184 INFO L413 NwaCegarLoop]: 3209 mSDtfsCounter, 1937 mSDsluCounter, 10247 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:09,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 12310 Invalid, 1557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1552 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2022-11-03 02:48:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42738 states. [2022-11-03 02:48:11,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42738 to 42707. [2022-11-03 02:48:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42707 states, 25140 states have (on average 1.2588703261734289) internal successors, (31648), 25825 states have internal predecessors, (31648), 14191 states have call successors, (14191), 3468 states have call predecessors, (14191), 3372 states have return successors, (14392), 13793 states have call predecessors, (14392), 14183 states have call successors, (14392) [2022-11-03 02:48:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42707 states to 42707 states and 60231 transitions. [2022-11-03 02:48:12,264 INFO L78 Accepts]: Start accepts. Automaton has 42707 states and 60231 transitions. Word has length 203 [2022-11-03 02:48:12,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:12,265 INFO L495 AbstractCegarLoop]: Abstraction has 42707 states and 60231 transitions. [2022-11-03 02:48:12,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 02:48:12,266 INFO L276 IsEmpty]: Start isEmpty. Operand 42707 states and 60231 transitions. [2022-11-03 02:48:12,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 02:48:12,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:12,279 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:12,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:48:12,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:48:12,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1389722416, now seen corresponding path program 1 times [2022-11-03 02:48:12,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:12,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887275203] [2022-11-03 02:48:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:12,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2022-11-03 02:48:13,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:13,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887275203] [2022-11-03 02:48:13,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887275203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:13,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:13,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:48:13,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803542095] [2022-11-03 02:48:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:13,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:48:13,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:13,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:48:13,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:13,214 INFO L87 Difference]: Start difference. First operand 42707 states and 60231 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:48:16,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:18,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:20,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:23,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:26,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:30,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:31,520 INFO L93 Difference]: Finished difference Result 42720 states and 60240 transitions. [2022-11-03 02:48:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 211 [2022-11-03 02:48:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:31,708 INFO L225 Difference]: With dead ends: 42720 [2022-11-03 02:48:31,708 INFO L226 Difference]: Without dead ends: 42718 [2022-11-03 02:48:31,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:48:31,729 INFO L413 NwaCegarLoop]: 3212 mSDtfsCounter, 1931 mSDsluCounter, 10247 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 12313 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:31,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 12313 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1552 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2022-11-03 02:48:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42718 states. [2022-11-03 02:48:34,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42718 to 42711. [2022-11-03 02:48:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42711 states, 25143 states have (on average 1.2588394384122819) internal successors, (31651), 25828 states have internal predecessors, (31651), 14191 states have call successors, (14191), 3469 states have call predecessors, (14191), 3373 states have return successors, (14392), 13793 states have call predecessors, (14392), 14183 states have call successors, (14392) [2022-11-03 02:48:34,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42711 states to 42711 states and 60234 transitions. [2022-11-03 02:48:34,716 INFO L78 Accepts]: Start accepts. Automaton has 42711 states and 60234 transitions. Word has length 211 [2022-11-03 02:48:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:34,717 INFO L495 AbstractCegarLoop]: Abstraction has 42711 states and 60234 transitions. [2022-11-03 02:48:34,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:48:34,717 INFO L276 IsEmpty]: Start isEmpty. Operand 42711 states and 60234 transitions. [2022-11-03 02:48:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 02:48:34,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:34,724 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:34,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:48:34,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:48:34,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:34,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1597001455, now seen corresponding path program 1 times [2022-11-03 02:48:34,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:34,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46914714] [2022-11-03 02:48:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 883 trivial. 0 not checked. [2022-11-03 02:48:35,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:35,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46914714] [2022-11-03 02:48:35,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46914714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:35,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:35,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:48:35,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750077722] [2022-11-03 02:48:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:35,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:48:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:35,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:48:35,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:35,300 INFO L87 Difference]: Start difference. First operand 42711 states and 60234 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 02:48:37,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:39,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:42,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:46,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:49,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:54,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:55,190 INFO L93 Difference]: Finished difference Result 44323 states and 62298 transitions. [2022-11-03 02:48:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 213 [2022-11-03 02:48:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:55,393 INFO L225 Difference]: With dead ends: 44323 [2022-11-03 02:48:55,393 INFO L226 Difference]: Without dead ends: 44321 [2022-11-03 02:48:55,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:48:55,418 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 1865 mSDsluCounter, 10373 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:55,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 12478 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1575 Invalid, 6 Unknown, 0 Unchecked, 17.9s Time] [2022-11-03 02:48:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44321 states. [2022-11-03 02:48:57,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44321 to 44235. [2022-11-03 02:48:57,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44235 states, 25996 states have (on average 1.2541929527619633) internal successors, (32604), 26701 states have internal predecessors, (32604), 14691 states have call successors, (14691), 3640 states have call predecessors, (14691), 3544 states have return successors, (14892), 14273 states have call predecessors, (14892), 14683 states have call successors, (14892) [2022-11-03 02:48:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44235 states to 44235 states and 62187 transitions. [2022-11-03 02:48:58,031 INFO L78 Accepts]: Start accepts. Automaton has 44235 states and 62187 transitions. Word has length 213 [2022-11-03 02:48:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:58,032 INFO L495 AbstractCegarLoop]: Abstraction has 44235 states and 62187 transitions. [2022-11-03 02:48:58,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 02:48:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand 44235 states and 62187 transitions. [2022-11-03 02:48:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-03 02:48:58,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:58,040 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:58,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:48:58,040 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:48:58,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:58,041 INFO L85 PathProgramCache]: Analyzing trace with hash 613989026, now seen corresponding path program 1 times [2022-11-03 02:48:58,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:58,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687684086] [2022-11-03 02:48:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:58,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-11-03 02:48:58,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:58,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687684086] [2022-11-03 02:48:58,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687684086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:58,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:58,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:48:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091526651] [2022-11-03 02:48:58,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:58,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:48:58,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:58,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:48:58,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:58,935 INFO L87 Difference]: Start difference. First operand 44235 states and 62187 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:49:01,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:04,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:07,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:10,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:14,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:16,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:16,409 INFO L93 Difference]: Finished difference Result 44248 states and 62196 transitions. [2022-11-03 02:49:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:49:16,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2022-11-03 02:49:16,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:16,650 INFO L225 Difference]: With dead ends: 44248 [2022-11-03 02:49:16,650 INFO L226 Difference]: Without dead ends: 44246 [2022-11-03 02:49:16,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:49:16,664 INFO L413 NwaCegarLoop]: 3231 mSDtfsCounter, 1931 mSDsluCounter, 10293 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 12370 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:16,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 12370 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1563 Invalid, 4 Unknown, 0 Unchecked, 15.5s Time] [2022-11-03 02:49:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44246 states. [2022-11-03 02:49:18,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44246 to 44239. [2022-11-03 02:49:18,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44239 states, 25999 states have (on average 1.2541636216777567) internal successors, (32607), 26704 states have internal predecessors, (32607), 14691 states have call successors, (14691), 3641 states have call predecessors, (14691), 3545 states have return successors, (14892), 14273 states have call predecessors, (14892), 14683 states have call successors, (14892) [2022-11-03 02:49:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44239 states to 44239 states and 62190 transitions. [2022-11-03 02:49:19,064 INFO L78 Accepts]: Start accepts. Automaton has 44239 states and 62190 transitions. Word has length 222 [2022-11-03 02:49:19,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:19,065 INFO L495 AbstractCegarLoop]: Abstraction has 44239 states and 62190 transitions. [2022-11-03 02:49:19,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:49:19,066 INFO L276 IsEmpty]: Start isEmpty. Operand 44239 states and 62190 transitions. [2022-11-03 02:49:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-03 02:49:19,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:19,074 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:19,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:49:19,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:49:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1519582692, now seen corresponding path program 1 times [2022-11-03 02:49:19,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:19,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59231998] [2022-11-03 02:49:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:19,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-11-03 02:49:19,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:19,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59231998] [2022-11-03 02:49:19,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59231998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:19,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:19,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925775068] [2022-11-03 02:49:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:19,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:19,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:19,850 INFO L87 Difference]: Start difference. First operand 44239 states and 62190 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:49:23,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:26,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:30,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:33,658 INFO L93 Difference]: Finished difference Result 44271 states and 62208 transitions. [2022-11-03 02:49:33,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:49:33,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 227 [2022-11-03 02:49:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:33,914 INFO L225 Difference]: With dead ends: 44271 [2022-11-03 02:49:33,914 INFO L226 Difference]: Without dead ends: 44269 [2022-11-03 02:49:33,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:49:33,930 INFO L413 NwaCegarLoop]: 3221 mSDtfsCounter, 1868 mSDsluCounter, 10270 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 12340 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 12340 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1561 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-11-03 02:49:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44269 states. [2022-11-03 02:49:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44269 to 43822. [2022-11-03 02:49:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43822 states, 25706 states have (on average 1.25285925464872) internal successors, (32206), 26402 states have internal predecessors, (32206), 14601 states have call successors, (14601), 3607 states have call predecessors, (14601), 3511 states have return successors, (14802), 14192 states have call predecessors, (14802), 14593 states have call successors, (14802) [2022-11-03 02:49:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43822 states to 43822 states and 61609 transitions. [2022-11-03 02:49:36,284 INFO L78 Accepts]: Start accepts. Automaton has 43822 states and 61609 transitions. Word has length 227 [2022-11-03 02:49:36,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:36,285 INFO L495 AbstractCegarLoop]: Abstraction has 43822 states and 61609 transitions. [2022-11-03 02:49:36,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:49:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 43822 states and 61609 transitions. [2022-11-03 02:49:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-03 02:49:36,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:36,296 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:36,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:49:36,297 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:49:36,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:36,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2045155857, now seen corresponding path program 1 times [2022-11-03 02:49:36,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:36,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002552177] [2022-11-03 02:49:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:36,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2022-11-03 02:49:36,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:36,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002552177] [2022-11-03 02:49:36,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002552177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:36,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:36,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:36,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168917400] [2022-11-03 02:49:36,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:36,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:36,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:36,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:36,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:36,819 INFO L87 Difference]: Start difference. First operand 43822 states and 61609 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:49:39,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:42,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:44,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:47,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:50,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:53,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:55,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:59,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:01,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:03,000 INFO L93 Difference]: Finished difference Result 43835 states and 61618 transitions. [2022-11-03 02:50:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:50:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2022-11-03 02:50:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:03,163 INFO L225 Difference]: With dead ends: 43835 [2022-11-03 02:50:03,163 INFO L226 Difference]: Without dead ends: 43833 [2022-11-03 02:50:03,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:50:03,181 INFO L413 NwaCegarLoop]: 3231 mSDtfsCounter, 1932 mSDsluCounter, 10295 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 12370 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:03,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 12370 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1563 Invalid, 6 Unknown, 0 Unchecked, 23.9s Time] [2022-11-03 02:50:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43833 states. [2022-11-03 02:50:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43833 to 43826. [2022-11-03 02:50:05,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43826 states, 25709 states have (on average 1.2528297483371582) internal successors, (32209), 26405 states have internal predecessors, (32209), 14601 states have call successors, (14601), 3608 states have call predecessors, (14601), 3512 states have return successors, (14802), 14192 states have call predecessors, (14802), 14593 states have call successors, (14802) [2022-11-03 02:50:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43826 states to 43826 states and 61612 transitions. [2022-11-03 02:50:05,482 INFO L78 Accepts]: Start accepts. Automaton has 43826 states and 61612 transitions. Word has length 228 [2022-11-03 02:50:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:05,483 INFO L495 AbstractCegarLoop]: Abstraction has 43826 states and 61612 transitions. [2022-11-03 02:50:05,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:50:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 43826 states and 61612 transitions. [2022-11-03 02:50:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-03 02:50:05,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:05,494 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:05,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:50:05,494 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:50:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:05,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1872309042, now seen corresponding path program 1 times [2022-11-03 02:50:05,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:05,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464497563] [2022-11-03 02:50:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:05,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-03 02:50:06,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:06,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464497563] [2022-11-03 02:50:06,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464497563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:06,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:06,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:50:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805076070] [2022-11-03 02:50:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:06,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:50:06,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:50:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:50:06,105 INFO L87 Difference]: Start difference. First operand 43826 states and 61612 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:50:08,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:13,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:16,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:18,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:20,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:24,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:29,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:30,447 INFO L93 Difference]: Finished difference Result 43918 states and 61726 transitions. [2022-11-03 02:50:30,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:50:30,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 236 [2022-11-03 02:50:30,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:30,619 INFO L225 Difference]: With dead ends: 43918 [2022-11-03 02:50:30,619 INFO L226 Difference]: Without dead ends: 43916 [2022-11-03 02:50:30,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:50:30,636 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 1864 mSDsluCounter, 10373 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:30,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 12478 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1575 Invalid, 6 Unknown, 0 Unchecked, 22.0s Time] [2022-11-03 02:50:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43916 states. [2022-11-03 02:50:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43916 to 43830. [2022-11-03 02:50:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43830 states, 25712 states have (on average 1.2528002489110144) internal successors, (32212), 26408 states have internal predecessors, (32212), 14601 states have call successors, (14601), 3609 states have call predecessors, (14601), 3513 states have return successors, (14802), 14192 states have call predecessors, (14802), 14593 states have call successors, (14802) [2022-11-03 02:50:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43830 states to 43830 states and 61615 transitions. [2022-11-03 02:50:32,947 INFO L78 Accepts]: Start accepts. Automaton has 43830 states and 61615 transitions. Word has length 236 [2022-11-03 02:50:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:32,948 INFO L495 AbstractCegarLoop]: Abstraction has 43830 states and 61615 transitions. [2022-11-03 02:50:32,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:50:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 43830 states and 61615 transitions. [2022-11-03 02:50:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-03 02:50:32,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:32,960 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:32,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:50:32,961 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:50:32,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:32,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1315189329, now seen corresponding path program 1 times [2022-11-03 02:50:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:32,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936786156] [2022-11-03 02:50:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:32,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2022-11-03 02:50:33,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:33,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936786156] [2022-11-03 02:50:33,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936786156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:33,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:33,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:50:33,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179611710] [2022-11-03 02:50:33,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:33,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:50:33,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:33,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:50:33,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:50:33,618 INFO L87 Difference]: Start difference. First operand 43830 states and 61615 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:50:37,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:42,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:44,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:48,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:52,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:53,786 INFO L93 Difference]: Finished difference Result 43922 states and 61729 transitions. [2022-11-03 02:50:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:50:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 238 [2022-11-03 02:50:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:53,952 INFO L225 Difference]: With dead ends: 43922 [2022-11-03 02:50:53,952 INFO L226 Difference]: Without dead ends: 43920 [2022-11-03 02:50:53,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:50:53,975 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 1865 mSDsluCounter, 10371 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:53,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 12478 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1574 Invalid, 5 Unknown, 0 Unchecked, 18.1s Time] [2022-11-03 02:50:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43920 states. [2022-11-03 02:50:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43920 to 43834. [2022-11-03 02:50:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43834 states, 25715 states have (on average 1.2527707563678787) internal successors, (32215), 26411 states have internal predecessors, (32215), 14601 states have call successors, (14601), 3610 states have call predecessors, (14601), 3514 states have return successors, (14802), 14192 states have call predecessors, (14802), 14593 states have call successors, (14802) [2022-11-03 02:50:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43834 states to 43834 states and 61618 transitions. [2022-11-03 02:50:56,673 INFO L78 Accepts]: Start accepts. Automaton has 43834 states and 61618 transitions. Word has length 238 [2022-11-03 02:50:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 43834 states and 61618 transitions. [2022-11-03 02:50:56,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:50:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 43834 states and 61618 transitions. [2022-11-03 02:50:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-03 02:50:56,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:56,879 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:56,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:50:56,880 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:50:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash 373142010, now seen corresponding path program 1 times [2022-11-03 02:50:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:56,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129670836] [2022-11-03 02:50:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2022-11-03 02:50:57,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129670836] [2022-11-03 02:50:57,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129670836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:57,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:57,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:50:57,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998373556] [2022-11-03 02:50:57,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:57,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:50:57,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:57,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:50:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:50:57,579 INFO L87 Difference]: Start difference. First operand 43834 states and 61618 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 02:51:00,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:03,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:04,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:07,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:10,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:51:16,896 INFO L93 Difference]: Finished difference Result 68130 states and 96182 transitions. [2022-11-03 02:51:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:51:16,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 236 [2022-11-03 02:51:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:51:17,162 INFO L225 Difference]: With dead ends: 68130 [2022-11-03 02:51:17,163 INFO L226 Difference]: Without dead ends: 68128 [2022-11-03 02:51:17,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:51:17,187 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 2743 mSDsluCounter, 12479 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 15206 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:51:17,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 15206 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1996 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 02:51:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68128 states. [2022-11-03 02:51:20,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68128 to 68045. [2022-11-03 02:51:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68045 states, 39959 states have (on average 1.2569383618208665) internal successors, (50226), 41113 states have internal predecessors, (50226), 22726 states have call successors, (22726), 5536 states have call predecessors, (22726), 5356 states have return successors, (23103), 22003 states have call predecessors, (23103), 22718 states have call successors, (23103) [2022-11-03 02:51:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68045 states to 68045 states and 96055 transitions. [2022-11-03 02:51:21,281 INFO L78 Accepts]: Start accepts. Automaton has 68045 states and 96055 transitions. Word has length 236 [2022-11-03 02:51:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:51:21,282 INFO L495 AbstractCegarLoop]: Abstraction has 68045 states and 96055 transitions. [2022-11-03 02:51:21,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 02:51:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 68045 states and 96055 transitions. [2022-11-03 02:51:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 02:51:21,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:51:21,295 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 9, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:51:21,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:51:21,296 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:51:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:51:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1703823644, now seen corresponding path program 1 times [2022-11-03 02:51:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:51:21,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283928588] [2022-11-03 02:51:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:51:21,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:51:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:51:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-11-03 02:51:22,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:51:22,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283928588] [2022-11-03 02:51:22,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283928588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:51:22,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:51:22,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:51:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761126042] [2022-11-03 02:51:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:51:22,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:51:22,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:51:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:51:22,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:51:22,367 INFO L87 Difference]: Start difference. First operand 68045 states and 96055 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 02:51:24,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:51:27,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:30,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:32,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:35,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:38,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:45,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:48,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:51:50,200 INFO L93 Difference]: Finished difference Result 73873 states and 104000 transitions. [2022-11-03 02:51:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:51:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 247 [2022-11-03 02:51:50,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:51:50,516 INFO L225 Difference]: With dead ends: 73873 [2022-11-03 02:51:50,516 INFO L226 Difference]: Without dead ends: 73871 [2022-11-03 02:51:50,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:51:50,548 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 2849 mSDsluCounter, 12277 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 14966 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:51:50,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2862 Valid, 14966 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1954 Invalid, 7 Unknown, 0 Unchecked, 24.4s Time] [2022-11-03 02:51:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73871 states. [2022-11-03 02:51:54,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73871 to 73704. [2022-11-03 02:51:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73704 states, 43336 states have (on average 1.2544766475909175) internal successors, (54364), 44534 states have internal predecessors, (54364), 24505 states have call successors, (24505), 6036 states have call predecessors, (24505), 5859 states have return successors, (24890), 23753 states have call predecessors, (24890), 24493 states have call successors, (24890) [2022-11-03 02:51:55,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73704 states to 73704 states and 103759 transitions. [2022-11-03 02:51:55,365 INFO L78 Accepts]: Start accepts. Automaton has 73704 states and 103759 transitions. Word has length 247 [2022-11-03 02:51:55,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:51:55,366 INFO L495 AbstractCegarLoop]: Abstraction has 73704 states and 103759 transitions. [2022-11-03 02:51:55,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 02:51:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 73704 states and 103759 transitions. [2022-11-03 02:51:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-03 02:51:55,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:51:55,379 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:51:55,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:51:55,379 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:51:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:51:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1266600593, now seen corresponding path program 1 times [2022-11-03 02:51:55,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:51:55,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650012843] [2022-11-03 02:51:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:51:55,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:51:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:51:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2022-11-03 02:51:55,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:51:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650012843] [2022-11-03 02:51:55,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650012843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:51:55,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:51:55,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:51:55,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195486000] [2022-11-03 02:51:55,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:51:55,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:51:55,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:51:55,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:51:55,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:51:55,981 INFO L87 Difference]: Start difference. First operand 73704 states and 103759 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:51:59,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:01,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:03,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:07,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:09,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:15,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:18,131 INFO L93 Difference]: Finished difference Result 73715 states and 103767 transitions. [2022-11-03 02:52:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:52:18,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 248 [2022-11-03 02:52:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:18,614 INFO L225 Difference]: With dead ends: 73715 [2022-11-03 02:52:18,614 INFO L226 Difference]: Without dead ends: 73713 [2022-11-03 02:52:18,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:52:18,644 INFO L413 NwaCegarLoop]: 3237 mSDtfsCounter, 1930 mSDsluCounter, 10307 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 12388 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:18,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 12388 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1565 Invalid, 5 Unknown, 0 Unchecked, 18.1s Time] [2022-11-03 02:52:18,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73713 states.