./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-usb-smsc75xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 933dd0d2fb6123c49a9fe18c9ec661f96e4ab43ff48b9b6395d569a8d178a6c2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:15:55,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:15:55,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:15:55,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:15:55,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:15:55,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:15:55,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:15:55,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:15:55,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:15:55,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:15:55,298 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:15:55,299 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:15:55,299 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:15:55,299 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:15:55,300 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:15:55,300 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:15:55,301 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:15:55,301 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:15:55,302 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:15:55,302 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:15:55,302 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:15:55,303 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:15:55,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:15:55,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:15:55,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:15:55,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:15:55,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:15:55,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:15:55,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:15:55,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:15:55,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:15:55,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:15:55,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:15:55,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:15:55,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:15:55,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:15:55,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:15:55,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:15:55,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:15:55,322 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:15:55,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:15:55,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:15:55,323 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:15:55,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:15:55,323 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933dd0d2fb6123c49a9fe18c9ec661f96e4ab43ff48b9b6395d569a8d178a6c2 [2024-11-09 06:15:55,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:15:55,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:15:55,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:15:55,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:15:55,634 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:15:55,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i Unable to find full path for "g++" [2024-11-09 06:15:57,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:15:58,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:15:58,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2024-11-09 06:15:58,292 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/data/c3cc59f41/6df9291186be40e3bc41e0076f2147dd/FLAGbc974ce33 [2024-11-09 06:15:58,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/data/c3cc59f41/6df9291186be40e3bc41e0076f2147dd [2024-11-09 06:15:58,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:15:58,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:15:58,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:15:58,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:15:58,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:15:58,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:15:58" (1/1) ... [2024-11-09 06:15:58,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c397936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:58, skipping insertion in model container [2024-11-09 06:15:58,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:15:58" (1/1) ... [2024-11-09 06:15:58,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:16:01,714 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2024-11-09 06:16:01,719 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2024-11-09 06:16:01,720 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2024-11-09 06:16:01,720 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2024-11-09 06:16:01,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:16:01,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:16:01,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (91), "i" (12UL)); [5786-5787] [2024-11-09 06:16:01,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (118), "i" (12UL)); [5826-5827] [2024-11-09 06:16:01,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (355), "i" (12UL)); [6178-6179] [2024-11-09 06:16:01,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (356), "i" (12UL)); [6189-6190] [2024-11-09 06:16:01,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (393), "i" (12UL)); [6258-6259] [2024-11-09 06:16:01,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/usb/smsc75xx.c"), "i" (394), "i" (12UL)); [6269-6270] [2024-11-09 06:16:02,238 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2024-11-09 06:16:02,239 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2024-11-09 06:16:02,239 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2024-11-09 06:16:02,240 WARN L250 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_93f4f40e-33ba-4079-af7e-d46e76fabffa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2024-11-09 06:16:02,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:16:02,436 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:16:02,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02 WrapperNode [2024-11-09 06:16:02,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:16:02,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:16:02,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:16:02,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:16:02,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:02,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:02,778 INFO L138 Inliner]: procedures = 389, calls = 3974, calls flagged for inlining = 185, calls inlined = 168, statements flattened = 9811 [2024-11-09 06:16:02,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:16:02,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:16:02,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:16:02,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:16:02,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:02,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:02,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:02,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:16:03,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:16:03,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:16:03,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:16:03,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (1/1) ... [2024-11-09 06:16:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:16:03,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:03,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:16:03,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4f40e-33ba-4079-af7e-d46e76fabffa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:16:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg_nopm [2024-11-09 06:16:03,448 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg_nopm [2024-11-09 06:16:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 06:16:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 06:16:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2024-11-09 06:16:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2024-11-09 06:16:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 06:16:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 06:16:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2024-11-09 06:16:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2024-11-09 06:16:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 06:16:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 06:16:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2024-11-09 06:16:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2024-11-09 06:16:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enable_phy_wakeup_interrupts [2024-11-09 06:16:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enable_phy_wakeup_interrupts [2024-11-09 06:16:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_reset [2024-11-09 06:16:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_reset [2024-11-09 06:16:03,454 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_eeprom [2024-11-09 06:16:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_eeprom [2024-11-09 06:16:03,454 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_write [2024-11-09 06:16:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_write [2024-11-09 06:16:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-09 06:16:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-09 06:16:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 06:16:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 06:16:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-09 06:16:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-09 06:16:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_csum_offload [2024-11-09 06:16:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_csum_offload [2024-11-09 06:16:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 06:16:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 06:16:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 06:16:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 06:16:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:16:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_features [2024-11-09 06:16:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_features [2024-11-09 06:16:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 06:16:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 06:16:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 06:16:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2024-11-09 06:16:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2024-11-09 06:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 06:16:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 06:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2024-11-09 06:16:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2024-11-09 06:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read_nopm [2024-11-09 06:16:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read_nopm [2024-11-09 06:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 06:16:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 06:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_phy_wait_not_busy [2024-11-09 06:16:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_phy_wait_not_busy [2024-11-09 06:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-09 06:16:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-09 06:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write [2024-11-09 06:16:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write [2024-11-09 06:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 06:16:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 06:16:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:16:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 06:16:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 06:16:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 06:16:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 06:16:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:16:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 06:16:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 06:16:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 06:16:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 06:16:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:16:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:16:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:16:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2024-11-09 06:16:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2024-11-09 06:16:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read [2024-11-09 06:16:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read [2024-11-09 06:16:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_rx_max_frame_length [2024-11-09 06:16:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_rx_max_frame_length [2024-11-09 06:16:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-09 06:16:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-09 06:16:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:16:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:16:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_read_reg [2024-11-09 06:16:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_read_reg [2024-11-09 06:16:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-11-09 06:16:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-11-09 06:16:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-09 06:16:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-09 06:16:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom_len [2024-11-09 06:16:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom_len [2024-11-09 06:16:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 06:16:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:16:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 06:16:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 06:16:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2024-11-09 06:16:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2024-11-09 06:16:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-09 06:16:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-09 06:16:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 06:16:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 06:16:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2024-11-09 06:16:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2024-11-09 06:16:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg [2024-11-09 06:16:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg [2024-11-09 06:16:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2024-11-09 06:16:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 06:16:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write_nopm [2024-11-09 06:16:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write_nopm [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_multicast [2024-11-09 06:16:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_multicast [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 06:16:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:16:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 06:16:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 06:16:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 06:16:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 06:16:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 06:16:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 06:16:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_read [2024-11-09 06:16:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_read [2024-11-09 06:16:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 06:16:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 06:16:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 06:16:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 06:16:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg_nopm [2024-11-09 06:16:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg_nopm [2024-11-09 06:16:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-09 06:16:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-09 06:16:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_write_reg [2024-11-09 06:16:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_write_reg [2024-11-09 06:16:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2024-11-09 06:16:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2024-11-09 06:16:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_ready [2024-11-09 06:16:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_ready [2024-11-09 06:16:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:16:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-09 06:16:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-09 06:16:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_eeprom [2024-11-09 06:16:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_eeprom [2024-11-09 06:16:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 06:16:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 06:16:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_reset [2024-11-09 06:16:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_reset [2024-11-09 06:16:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_resume [2024-11-09 06:16:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_resume [2024-11-09 06:16:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_wuff [2024-11-09 06:16:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_wuff [2024-11-09 06:16:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_eeprom_confirm_not_busy [2024-11-09 06:16:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_eeprom_confirm_not_busy [2024-11-09 06:16:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 06:16:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 06:16:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend2 [2024-11-09 06:16:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend2 [2024-11-09 06:16:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend1 [2024-11-09 06:16:03,482 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend1 [2024-11-09 06:16:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg [2024-11-09 06:16:03,482 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg [2024-11-09 06:16:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:16:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2024-11-09 06:16:03,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2024-11-09 06:16:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 06:16:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 06:16:04,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:16:04,531 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:16:05,105 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 06:16:18,168 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 06:16:25,061 INFO L? ?]: Removed 2798 outVars from TransFormulas that were not future-live. [2024-11-09 06:16:25,061 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:16:28,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:16:28,745 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:16:28,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:16:28 BoogieIcfgContainer [2024-11-09 06:16:28,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:16:28,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:16:28,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:16:28,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:16:28,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:15:58" (1/3) ... [2024-11-09 06:16:28,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312333d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:16:28, skipping insertion in model container [2024-11-09 06:16:28,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:02" (2/3) ... [2024-11-09 06:16:28,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312333d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:16:28, skipping insertion in model container [2024-11-09 06:16:28,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:16:28" (3/3) ... [2024-11-09 06:16:28,754 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2024-11-09 06:16:28,772 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:16:28,772 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 06:16:28,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:16:28,904 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34d30bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:16:28,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 06:16:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 1829 states, 1145 states have (on average 1.3545851528384278) internal successors, (1551), 1148 states have internal predecessors, (1551), 606 states have call successors, (606), 76 states have call predecessors, (606), 75 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599) [2024-11-09 06:16:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-09 06:16:28,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:28,939 INFO L215 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:28,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:16:28,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1594499100, now seen corresponding path program 1 times [2024-11-09 06:16:28,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171139872] [2024-11-09 06:16:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2024-11-09 06:16:35,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:35,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171139872] [2024-11-09 06:16:35,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171139872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:35,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:16:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90756523] [2024-11-09 06:16:35,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:35,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:35,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:35,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:35,399 INFO L87 Difference]: Start difference. First operand has 1829 states, 1145 states have (on average 1.3545851528384278) internal successors, (1551), 1148 states have internal predecessors, (1551), 606 states have call successors, (606), 76 states have call predecessors, (606), 75 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599) 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:16:37,535 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 [] [2024-11-09 06:16:39,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:46,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:46,090 INFO L93 Difference]: Finished difference Result 5336 states and 8095 transitions. [2024-11-09 06:16:46,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:46,093 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 194 [2024-11-09 06:16:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:46,137 INFO L225 Difference]: With dead ends: 5336 [2024-11-09 06:16:46,137 INFO L226 Difference]: Without dead ends: 3531 [2024-11-09 06:16:46,151 INFO L431 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 [2024-11-09 06:16:46,156 INFO L432 NwaCegarLoop]: 2457 mSDtfsCounter, 2611 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:46,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 4868 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 620 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-09 06:16:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2024-11-09 06:16:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3527. [2024-11-09 06:16:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 2231 states have (on average 1.3518601523980278) internal successors, (3016), 2236 states have internal predecessors, (3016), 1147 states have call successors, (1147), 147 states have call predecessors, (1147), 146 states have return successors, (1143), 1143 states have call predecessors, (1143), 1143 states have call successors, (1143) [2024-11-09 06:16:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 5306 transitions. [2024-11-09 06:16:46,571 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 5306 transitions. Word has length 194 [2024-11-09 06:16:46,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:46,574 INFO L471 AbstractCegarLoop]: Abstraction has 3527 states and 5306 transitions. [2024-11-09 06:16:46,575 INFO L472 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:16:46,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 5306 transitions. [2024-11-09 06:16:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-09 06:16:46,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:46,586 INFO L215 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:46,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:16:46,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:16:46,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:46,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2003723607, now seen corresponding path program 1 times [2024-11-09 06:16:46,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917082819] [2024-11-09 06:16:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:46,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2024-11-09 06:16:51,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:51,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917082819] [2024-11-09 06:16:51,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917082819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:51,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:51,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:16:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523995066] [2024-11-09 06:16:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:51,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:51,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:51,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:51,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:51,999 INFO L87 Difference]: Start difference. First operand 3527 states and 5306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-09 06:16:54,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:56,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:04,562 INFO L93 Difference]: Finished difference Result 8525 states and 12783 transitions. [2024-11-09 06:17:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:17:04,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2024-11-09 06:17:04,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:04,597 INFO L225 Difference]: With dead ends: 8525 [2024-11-09 06:17:04,598 INFO L226 Difference]: Without dead ends: 5033 [2024-11-09 06:17:04,614 INFO L431 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 [2024-11-09 06:17:04,615 INFO L432 NwaCegarLoop]: 2571 mSDtfsCounter, 2431 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 4960 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:04,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 4960 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 660 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2024-11-09 06:17:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5033 states. [2024-11-09 06:17:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5033 to 5006. [2024-11-09 06:17:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 3146 states have (on average 1.3382072472981563) internal successors, (4210), 3156 states have internal predecessors, (4210), 1639 states have call successors, (1639), 219 states have call predecessors, (1639), 218 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:17:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 7484 transitions. [2024-11-09 06:17:04,969 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 7484 transitions. Word has length 203 [2024-11-09 06:17:04,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:04,972 INFO L471 AbstractCegarLoop]: Abstraction has 5006 states and 7484 transitions. [2024-11-09 06:17:04,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-09 06:17:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 7484 transitions. [2024-11-09 06:17:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-09 06:17:04,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:04,983 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:04,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:17:04,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:17:04,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:04,984 INFO L85 PathProgramCache]: Analyzing trace with hash -716993971, now seen corresponding path program 1 times [2024-11-09 06:17:04,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:04,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609290960] [2024-11-09 06:17:04,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:04,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2024-11-09 06:17:10,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:10,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609290960] [2024-11-09 06:17:10,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609290960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:10,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:10,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:17:10,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613919003] [2024-11-09 06:17:10,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:10,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:17:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:10,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:17:10,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:17:10,713 INFO L87 Difference]: Start difference. First operand 5006 states and 7484 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:17:12,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:14,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:17,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:20,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:26,324 INFO L93 Difference]: Finished difference Result 5012 states and 7489 transitions. [2024-11-09 06:17:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:17:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 238 [2024-11-09 06:17:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:26,362 INFO L225 Difference]: With dead ends: 5012 [2024-11-09 06:17:26,362 INFO L226 Difference]: Without dead ends: 5010 [2024-11-09 06:17:26,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:17:26,369 INFO L432 NwaCegarLoop]: 2426 mSDtfsCounter, 2669 mSDsluCounter, 4839 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:26,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 7265 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 06:17:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2024-11-09 06:17:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 5010. [2024-11-09 06:17:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 3149 states have (on average 1.3378850428707527) internal successors, (4213), 3159 states have internal predecessors, (4213), 1639 states have call successors, (1639), 220 states have call predecessors, (1639), 219 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:17:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 7487 transitions. [2024-11-09 06:17:26,761 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 7487 transitions. Word has length 238 [2024-11-09 06:17:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:26,766 INFO L471 AbstractCegarLoop]: Abstraction has 5010 states and 7487 transitions. [2024-11-09 06:17:26,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:17:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 7487 transitions. [2024-11-09 06:17:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-09 06:17:26,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:26,774 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:26,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:17:26,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:17:26,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -932196808, now seen corresponding path program 1 times [2024-11-09 06:17:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:26,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140334647] [2024-11-09 06:17:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1267 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2024-11-09 06:17:32,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140334647] [2024-11-09 06:17:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140334647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:17:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57642347] [2024-11-09 06:17:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:32,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:17:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:17:32,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:17:32,147 INFO L87 Difference]: Start difference. First operand 5010 states and 7487 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:17:34,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:36,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:38,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:46,233 INFO L93 Difference]: Finished difference Result 5016 states and 7492 transitions. [2024-11-09 06:17:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:17:46,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 242 [2024-11-09 06:17:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:46,266 INFO L225 Difference]: With dead ends: 5016 [2024-11-09 06:17:46,266 INFO L226 Difference]: Without dead ends: 5014 [2024-11-09 06:17:46,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:17:46,270 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2666 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:46,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 06:17:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2024-11-09 06:17:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 5014. [2024-11-09 06:17:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 3152 states have (on average 1.3375634517766497) internal successors, (4216), 3162 states have internal predecessors, (4216), 1639 states have call successors, (1639), 221 states have call predecessors, (1639), 220 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:17:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7490 transitions. [2024-11-09 06:17:46,708 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7490 transitions. Word has length 242 [2024-11-09 06:17:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:46,709 INFO L471 AbstractCegarLoop]: Abstraction has 5014 states and 7490 transitions. [2024-11-09 06:17:46,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:17:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7490 transitions. [2024-11-09 06:17:46,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-09 06:17:46,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:46,717 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:46,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:17:46,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:17:46,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1242503723, now seen corresponding path program 1 times [2024-11-09 06:17:46,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:46,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120798282] [2024-11-09 06:17:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:46,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2024-11-09 06:17:51,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:51,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120798282] [2024-11-09 06:17:51,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120798282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:51,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:51,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:17:51,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759508434] [2024-11-09 06:17:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:51,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:17:51,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:17:51,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:17:51,586 INFO L87 Difference]: Start difference. First operand 5014 states and 7490 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2024-11-09 06:17:53,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:55,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:57,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:00,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:02,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:07,672 INFO L93 Difference]: Finished difference Result 5020 states and 7495 transitions. [2024-11-09 06:18:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:07,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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 247 [2024-11-09 06:18:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:07,704 INFO L225 Difference]: With dead ends: 5020 [2024-11-09 06:18:07,704 INFO L226 Difference]: Without dead ends: 5018 [2024-11-09 06:18:07,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:18:07,708 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2665 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:07,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2024-11-09 06:18:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2024-11-09 06:18:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2024-11-09 06:18:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 3155 states have (on average 1.3372424722662442) internal successors, (4219), 3165 states have internal predecessors, (4219), 1639 states have call successors, (1639), 222 states have call predecessors, (1639), 221 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:18:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7493 transitions. [2024-11-09 06:18:08,142 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7493 transitions. Word has length 247 [2024-11-09 06:18:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:08,143 INFO L471 AbstractCegarLoop]: Abstraction has 5018 states and 7493 transitions. [2024-11-09 06:18:08,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2024-11-09 06:18:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7493 transitions. [2024-11-09 06:18:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-09 06:18:08,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:08,152 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:08,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:18:08,152 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:18:08,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1911724584, now seen corresponding path program 1 times [2024-11-09 06:18:08,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:08,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35792185] [2024-11-09 06:18:08,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2024-11-09 06:18:13,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:13,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35792185] [2024-11-09 06:18:13,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35792185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:13,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:13,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:18:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806440794] [2024-11-09 06:18:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:13,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:18:13,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:13,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:18:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:13,072 INFO L87 Difference]: Start difference. First operand 5018 states and 7493 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 06:18:15,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:17,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:19,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:23,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:28,541 INFO L93 Difference]: Finished difference Result 5024 states and 7498 transitions. [2024-11-09 06:18:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:28,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 252 [2024-11-09 06:18:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:28,572 INFO L225 Difference]: With dead ends: 5024 [2024-11-09 06:18:28,573 INFO L226 Difference]: Without dead ends: 5022 [2024-11-09 06:18:28,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:18:28,577 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2664 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:28,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2024-11-09 06:18:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-11-09 06:18:28,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5022. [2024-11-09 06:18:28,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 3158 states have (on average 1.33692210259658) internal successors, (4222), 3168 states have internal predecessors, (4222), 1639 states have call successors, (1639), 223 states have call predecessors, (1639), 222 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:18:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 7496 transitions. [2024-11-09 06:18:28,997 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 7496 transitions. Word has length 252 [2024-11-09 06:18:29,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:29,001 INFO L471 AbstractCegarLoop]: Abstraction has 5022 states and 7496 transitions. [2024-11-09 06:18:29,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 06:18:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 7496 transitions. [2024-11-09 06:18:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-09 06:18:29,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:29,012 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:29,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:18:29,012 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:18:29,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash -520292090, now seen corresponding path program 1 times [2024-11-09 06:18:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:29,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675264193] [2024-11-09 06:18:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2024-11-09 06:18:33,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675264193] [2024-11-09 06:18:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675264193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:33,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:18:33,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494298494] [2024-11-09 06:18:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:33,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:18:33,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:18:33,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:33,918 INFO L87 Difference]: Start difference. First operand 5022 states and 7496 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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) [2024-11-09 06:18:35,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:38,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:40,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:44,129 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 [] [2024-11-09 06:18:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:50,310 INFO L93 Difference]: Finished difference Result 5028 states and 7501 transitions. [2024-11-09 06:18:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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 259 [2024-11-09 06:18:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:50,339 INFO L225 Difference]: With dead ends: 5028 [2024-11-09 06:18:50,339 INFO L226 Difference]: Without dead ends: 5026 [2024-11-09 06:18:50,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:18:50,343 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2662 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:50,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 06:18:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2024-11-09 06:18:50,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 5026. [2024-11-09 06:18:50,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 3161 states have (on average 1.3366023410313193) internal successors, (4225), 3171 states have internal predecessors, (4225), 1639 states have call successors, (1639), 224 states have call predecessors, (1639), 223 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:18:50,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 7499 transitions. [2024-11-09 06:18:50,765 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 7499 transitions. Word has length 259 [2024-11-09 06:18:50,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:50,765 INFO L471 AbstractCegarLoop]: Abstraction has 5026 states and 7499 transitions. [2024-11-09 06:18:50,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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) [2024-11-09 06:18:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 7499 transitions. [2024-11-09 06:18:50,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-09 06:18:50,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:50,776 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:50,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:18:50,776 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:18:50,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1048553546, now seen corresponding path program 1 times [2024-11-09 06:18:50,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185743805] [2024-11-09 06:18:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:50,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-11-09 06:18:55,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185743805] [2024-11-09 06:18:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185743805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:55,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:55,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:18:55,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923707975] [2024-11-09 06:18:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:55,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:18:55,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:55,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:18:55,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:55,718 INFO L87 Difference]: Start difference. First operand 5026 states and 7499 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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) [2024-11-09 06:18:57,768 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 [] [2024-11-09 06:18:59,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:02,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:05,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:11,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:11,651 INFO L93 Difference]: Finished difference Result 5032 states and 7504 transitions. [2024-11-09 06:19:11,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:19:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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 263 [2024-11-09 06:19:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:11,668 INFO L225 Difference]: With dead ends: 5032 [2024-11-09 06:19:11,669 INFO L226 Difference]: Without dead ends: 5030 [2024-11-09 06:19:11,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:19:11,671 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2661 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:11,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2024-11-09 06:19:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2024-11-09 06:19:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2024-11-09 06:19:12,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 3164 states have (on average 1.336283185840708) internal successors, (4228), 3174 states have internal predecessors, (4228), 1639 states have call successors, (1639), 225 states have call predecessors, (1639), 224 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:19:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7502 transitions. [2024-11-09 06:19:12,099 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7502 transitions. Word has length 263 [2024-11-09 06:19:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:12,100 INFO L471 AbstractCegarLoop]: Abstraction has 5030 states and 7502 transitions. [2024-11-09 06:19:12,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (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) [2024-11-09 06:19:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7502 transitions. [2024-11-09 06:19:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-09 06:19:12,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:12,109 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:12,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:19:12,110 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:19:12,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:12,110 INFO L85 PathProgramCache]: Analyzing trace with hash -21222933, now seen corresponding path program 1 times [2024-11-09 06:19:12,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546352575] [2024-11-09 06:19:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2024-11-09 06:19:17,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:17,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546352575] [2024-11-09 06:19:17,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546352575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:17,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:19:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443817976] [2024-11-09 06:19:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:17,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:19:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:17,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:19:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:19:17,460 INFO L87 Difference]: Start difference. First operand 5030 states and 7502 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2024-11-09 06:19:19,509 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 [] [2024-11-09 06:19:21,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:23,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:32,918 INFO L93 Difference]: Finished difference Result 5036 states and 7507 transitions. [2024-11-09 06:19:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:19:32,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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 267 [2024-11-09 06:19:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:32,941 INFO L225 Difference]: With dead ends: 5036 [2024-11-09 06:19:32,941 INFO L226 Difference]: Without dead ends: 5034 [2024-11-09 06:19:32,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:19:32,946 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2661 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:32,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2024-11-09 06:19:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2024-11-09 06:19:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 5034. [2024-11-09 06:19:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 3167 states have (on average 1.3359646353015473) internal successors, (4231), 3177 states have internal predecessors, (4231), 1639 states have call successors, (1639), 226 states have call predecessors, (1639), 225 states have return successors, (1635), 1630 states have call predecessors, (1635), 1635 states have call successors, (1635) [2024-11-09 06:19:33,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 7505 transitions. [2024-11-09 06:19:33,522 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 7505 transitions. Word has length 267 [2024-11-09 06:19:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:33,524 INFO L471 AbstractCegarLoop]: Abstraction has 5034 states and 7505 transitions. [2024-11-09 06:19:33,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2024-11-09 06:19:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 7505 transitions. [2024-11-09 06:19:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-09 06:19:33,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:33,536 INFO L215 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:33,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:19:33,536 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:19:33,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash 18380839, now seen corresponding path program 1 times [2024-11-09 06:19:33,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:33,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029185458] [2024-11-09 06:19:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2024-11-09 06:19:38,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:38,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029185458] [2024-11-09 06:19:38,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029185458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:38,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:38,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:19:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837335275] [2024-11-09 06:19:38,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:38,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:19:38,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:19:38,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:38,080 INFO L87 Difference]: Start difference. First operand 5034 states and 7505 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-09 06:19:40,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:42,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:51,078 INFO L93 Difference]: Finished difference Result 10167 states and 15143 transitions. [2024-11-09 06:19:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:19:51,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 263 [2024-11-09 06:19:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:51,154 INFO L225 Difference]: With dead ends: 10167 [2024-11-09 06:19:51,158 INFO L226 Difference]: Without dead ends: 6734 [2024-11-09 06:19:51,187 INFO L431 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 [2024-11-09 06:19:51,191 INFO L432 NwaCegarLoop]: 4626 mSDtfsCounter, 2481 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 7013 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:51,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 7013 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 876 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2024-11-09 06:19:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2024-11-09 06:19:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 6679. [2024-11-09 06:19:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 4206 states have (on average 1.3385639562529719) internal successors, (5630), 4221 states have internal predecessors, (5630), 2170 states have call successors, (2170), 301 states have call predecessors, (2170), 300 states have return successors, (2166), 2156 states have call predecessors, (2166), 2166 states have call successors, (2166) [2024-11-09 06:19:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9966 transitions. [2024-11-09 06:19:51,935 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9966 transitions. Word has length 263 [2024-11-09 06:19:51,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:51,935 INFO L471 AbstractCegarLoop]: Abstraction has 6679 states and 9966 transitions. [2024-11-09 06:19:51,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-09 06:19:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9966 transitions. [2024-11-09 06:19:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-09 06:19:51,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:51,947 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 8, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:51,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:19:51,947 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:19:51,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:51,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1681525206, now seen corresponding path program 1 times [2024-11-09 06:19:51,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:51,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428147435] [2024-11-09 06:19:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:51,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2024-11-09 06:19:57,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:57,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428147435] [2024-11-09 06:19:57,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428147435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:57,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:57,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:19:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850637520] [2024-11-09 06:19:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:57,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:19:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:19:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:19:57,269 INFO L87 Difference]: Start difference. First operand 6679 states and 9966 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 06:19:59,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:03,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:07,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:13,807 INFO L93 Difference]: Finished difference Result 6685 states and 9971 transitions. [2024-11-09 06:20:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:13,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 273 [2024-11-09 06:20:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:13,842 INFO L225 Difference]: With dead ends: 6685 [2024-11-09 06:20:13,842 INFO L226 Difference]: Without dead ends: 6683 [2024-11-09 06:20:13,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:13,848 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2659 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:13,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 06:20:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2024-11-09 06:20:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 6683. [2024-11-09 06:20:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4209 states have (on average 1.3383226419577097) internal successors, (5633), 4224 states have internal predecessors, (5633), 2170 states have call successors, (2170), 302 states have call predecessors, (2170), 301 states have return successors, (2166), 2156 states have call predecessors, (2166), 2166 states have call successors, (2166) [2024-11-09 06:20:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9969 transitions. [2024-11-09 06:20:14,625 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9969 transitions. Word has length 273 [2024-11-09 06:20:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:14,626 INFO L471 AbstractCegarLoop]: Abstraction has 6683 states and 9969 transitions. [2024-11-09 06:20:14,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 06:20:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9969 transitions. [2024-11-09 06:20:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-09 06:20:14,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:14,638 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:14,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:20:14,639 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:20:14,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:14,639 INFO L85 PathProgramCache]: Analyzing trace with hash 951975885, now seen corresponding path program 1 times [2024-11-09 06:20:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:14,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299940459] [2024-11-09 06:20:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:14,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2024-11-09 06:20:19,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299940459] [2024-11-09 06:20:19,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299940459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:19,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:19,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:20:19,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857223324] [2024-11-09 06:20:19,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:19,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:19,584 INFO L87 Difference]: Start difference. First operand 6683 states and 9969 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 06:20:21,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:23,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:25,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:30,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:31,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:37,861 INFO L93 Difference]: Finished difference Result 6689 states and 9974 transitions. [2024-11-09 06:20:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:37,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 278 [2024-11-09 06:20:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:37,889 INFO L225 Difference]: With dead ends: 6689 [2024-11-09 06:20:37,890 INFO L226 Difference]: Without dead ends: 6687 [2024-11-09 06:20:37,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:37,894 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2658 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:37,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2024-11-09 06:20:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2024-11-09 06:20:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 6687. [2024-11-09 06:20:38,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6687 states, 4212 states have (on average 1.3380816714150048) internal successors, (5636), 4227 states have internal predecessors, (5636), 2170 states have call successors, (2170), 303 states have call predecessors, (2170), 302 states have return successors, (2166), 2156 states have call predecessors, (2166), 2166 states have call successors, (2166) [2024-11-09 06:20:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6687 states to 6687 states and 9972 transitions. [2024-11-09 06:20:38,490 INFO L78 Accepts]: Start accepts. Automaton has 6687 states and 9972 transitions. Word has length 278 [2024-11-09 06:20:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:38,491 INFO L471 AbstractCegarLoop]: Abstraction has 6687 states and 9972 transitions. [2024-11-09 06:20:38,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 06:20:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6687 states and 9972 transitions. [2024-11-09 06:20:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-09 06:20:38,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:38,504 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:38,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:20:38,505 INFO L396 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:20:38,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1644305592, now seen corresponding path program 1 times [2024-11-09 06:20:38,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:38,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617561053] [2024-11-09 06:20:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2024-11-09 06:20:43,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617561053] [2024-11-09 06:20:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617561053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:43,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:43,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:20:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360976305] [2024-11-09 06:20:43,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:43,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:43,575 INFO L87 Difference]: Start difference. First operand 6687 states and 9972 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 06:20:45,622 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 [] [2024-11-09 06:20:47,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:49,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:20:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:59,396 INFO L93 Difference]: Finished difference Result 6721 states and 9993 transitions. [2024-11-09 06:20:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:20:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 282 [2024-11-09 06:20:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:59,431 INFO L225 Difference]: With dead ends: 6721 [2024-11-09 06:20:59,431 INFO L226 Difference]: Without dead ends: 6719 [2024-11-09 06:20:59,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:20:59,437 INFO L432 NwaCegarLoop]: 2427 mSDtfsCounter, 2581 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:59,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 7322 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 06:20:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2024-11-09 06:21:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 6719. [2024-11-09 06:21:00,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6719 states, 4231 states have (on average 1.3365634601748995) internal successors, (5655), 4246 states have internal predecessors, (5655), 2170 states have call successors, (2170), 316 states have call predecessors, (2170), 315 states have return successors, (2166), 2156 states have call predecessors, (2166), 2166 states have call successors, (2166) [2024-11-09 06:21:00,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6719 states to 6719 states and 9991 transitions. [2024-11-09 06:21:00,108 INFO L78 Accepts]: Start accepts. Automaton has 6719 states and 9991 transitions. Word has length 282 [2024-11-09 06:21:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:21:00,109 INFO L471 AbstractCegarLoop]: Abstraction has 6719 states and 9991 transitions. [2024-11-09 06:21:00,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 06:21:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6719 states and 9991 transitions. [2024-11-09 06:21:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-09 06:21:00,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:21:00,122 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:21:00,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:21:00,122 INFO L396 AbstractCegarLoop]: === Iteration 14 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:21:00,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:21:00,123 INFO L85 PathProgramCache]: Analyzing trace with hash -787310165, now seen corresponding path program 1 times [2024-11-09 06:21:00,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:21:00,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378890207] [2024-11-09 06:21:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:00,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:21:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2024-11-09 06:21:05,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:05,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378890207] [2024-11-09 06:21:05,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378890207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:21:05,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:21:05,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:21:05,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870407412] [2024-11-09 06:21:05,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:21:05,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:21:05,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:21:05,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:21:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:21:05,222 INFO L87 Difference]: Start difference. First operand 6719 states and 9991 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 06:21:07,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:09,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:11,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:14,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:21:22,022 INFO L93 Difference]: Finished difference Result 6725 states and 9996 transitions. [2024-11-09 06:21:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:21:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 287 [2024-11-09 06:21:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:21:22,053 INFO L225 Difference]: With dead ends: 6725 [2024-11-09 06:21:22,053 INFO L226 Difference]: Without dead ends: 6721 [2024-11-09 06:21:22,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:21:22,060 INFO L432 NwaCegarLoop]: 2429 mSDtfsCounter, 2657 mSDsluCounter, 4840 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:21:22,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 7269 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 916 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 06:21:22,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-11-09 06:21:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6721. [2024-11-09 06:21:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 4233 states have (on average 1.3361682022206474) internal successors, (5656), 4247 states have internal predecessors, (5656), 2170 states have call successors, (2170), 317 states have call predecessors, (2170), 315 states have return successors, (2166), 2156 states have call predecessors, (2166), 2166 states have call successors, (2166) [2024-11-09 06:21:22,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9992 transitions. [2024-11-09 06:21:22,839 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9992 transitions. Word has length 287 [2024-11-09 06:21:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:21:22,840 INFO L471 AbstractCegarLoop]: Abstraction has 6721 states and 9992 transitions. [2024-11-09 06:21:22,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 06:21:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9992 transitions. [2024-11-09 06:21:22,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-09 06:21:22,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:21:22,850 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:21:22,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:21:22,851 INFO L396 AbstractCegarLoop]: === Iteration 15 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:21:22,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:21:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash 866924365, now seen corresponding path program 1 times [2024-11-09 06:21:22,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:21:22,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10743091] [2024-11-09 06:21:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:22,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:21:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:21:27,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:27,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10743091] [2024-11-09 06:21:27,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10743091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:21:27,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:21:27,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:21:27,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613131584] [2024-11-09 06:21:27,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:21:27,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:21:27,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:21:27,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:21:27,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:21:27,321 INFO L87 Difference]: Start difference. First operand 6721 states and 9992 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:21:29,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:31,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:33,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:35,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:47,752 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 [] [2024-11-09 06:21:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:21:56,735 INFO L93 Difference]: Finished difference Result 13530 states and 20077 transitions. [2024-11-09 06:21:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:21:56,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 284 [2024-11-09 06:21:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:21:56,778 INFO L225 Difference]: With dead ends: 13530 [2024-11-09 06:21:56,778 INFO L226 Difference]: Without dead ends: 8417 [2024-11-09 06:21:56,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:21:56,804 INFO L432 NwaCegarLoop]: 4626 mSDtfsCounter, 2430 mSDsluCounter, 11635 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 16261 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:21:56,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 16261 Invalid, 1960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1954 Invalid, 5 Unknown, 0 Unchecked, 28.7s Time] [2024-11-09 06:21:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8417 states. [2024-11-09 06:21:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8417 to 8346. [2024-11-09 06:21:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8346 states, 5250 states have (on average 1.3354285714285714) internal successors, (7011), 5269 states have internal predecessors, (7011), 2700 states have call successors, (2700), 394 states have call predecessors, (2700), 393 states have return successors, (2697), 2682 states have call predecessors, (2697), 2696 states have call successors, (2697) [2024-11-09 06:21:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8346 states to 8346 states and 12408 transitions. [2024-11-09 06:21:57,662 INFO L78 Accepts]: Start accepts. Automaton has 8346 states and 12408 transitions. Word has length 284 [2024-11-09 06:21:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:21:57,663 INFO L471 AbstractCegarLoop]: Abstraction has 8346 states and 12408 transitions. [2024-11-09 06:21:57,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:21:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8346 states and 12408 transitions. [2024-11-09 06:21:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-09 06:21:57,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:21:57,676 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:21:57,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:21:57,677 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:21:57,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:21:57,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1852754628, now seen corresponding path program 1 times [2024-11-09 06:21:57,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:21:57,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510714201] [2024-11-09 06:21:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:57,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:22:02,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:02,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510714201] [2024-11-09 06:22:02,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510714201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:02,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:02,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:22:02,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954564827] [2024-11-09 06:22:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:02,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:22:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:22:02,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:22:02,259 INFO L87 Difference]: Start difference. First operand 8346 states and 12408 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:22:04,314 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 [] [2024-11-09 06:22:06,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:08,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:10,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:14,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:22,850 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 [] [2024-11-09 06:22:33,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:33,143 INFO L93 Difference]: Finished difference Result 16782 states and 24913 transitions. [2024-11-09 06:22:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:22:33,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 285 [2024-11-09 06:22:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:33,171 INFO L225 Difference]: With dead ends: 16782 [2024-11-09 06:22:33,171 INFO L226 Difference]: Without dead ends: 10044 [2024-11-09 06:22:33,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:22:33,197 INFO L432 NwaCegarLoop]: 4631 mSDtfsCounter, 2429 mSDsluCounter, 11645 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 16276 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:33,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 16276 Invalid, 1966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1959 Invalid, 5 Unknown, 0 Unchecked, 29.9s Time] [2024-11-09 06:22:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2024-11-09 06:22:33,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 9973. [2024-11-09 06:22:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 6269 states have (on average 1.3348221406922953) internal successors, (8368), 6293 states have internal predecessors, (8368), 3230 states have call successors, (3230), 471 states have call predecessors, (3230), 471 states have return successors, (3228), 3208 states have call predecessors, (3228), 3226 states have call successors, (3228) [2024-11-09 06:22:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 14826 transitions. [2024-11-09 06:22:33,990 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 14826 transitions. Word has length 285 [2024-11-09 06:22:33,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:33,990 INFO L471 AbstractCegarLoop]: Abstraction has 9973 states and 14826 transitions. [2024-11-09 06:22:33,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:22:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 14826 transitions. [2024-11-09 06:22:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-09 06:22:33,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:33,999 INFO L215 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 12, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:33,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:22:33,999 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:22:34,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1609574531, now seen corresponding path program 1 times [2024-11-09 06:22:34,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:34,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835060158] [2024-11-09 06:22:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2024-11-09 06:22:38,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835060158] [2024-11-09 06:22:38,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835060158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:38,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:38,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:22:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513313179] [2024-11-09 06:22:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:38,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:22:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:22:38,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:22:38,744 INFO L87 Difference]: Start difference. First operand 9973 states and 14826 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-09 06:22:40,797 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 [] [2024-11-09 06:22:42,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:45,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:48,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:50,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:57,452 INFO L93 Difference]: Finished difference Result 9973 states and 14826 transitions. [2024-11-09 06:22:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:22:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 294 [2024-11-09 06:22:57,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:57,480 INFO L225 Difference]: With dead ends: 9973 [2024-11-09 06:22:57,480 INFO L226 Difference]: Without dead ends: 9865 [2024-11-09 06:22:57,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:22:57,484 INFO L432 NwaCegarLoop]: 2427 mSDtfsCounter, 2652 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:57,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 7265 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 910 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2024-11-09 06:22:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2024-11-09 06:22:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 9865. [2024-11-09 06:22:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9865 states, 6223 states have (on average 1.3348867105897477) internal successors, (8307), 6232 states have internal predecessors, (8307), 3185 states have call successors, (3185), 453 states have call predecessors, (3185), 455 states have return successors, (3187), 3179 states have call predecessors, (3187), 3185 states have call successors, (3187) [2024-11-09 06:22:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9865 states to 9865 states and 14679 transitions. [2024-11-09 06:22:58,539 INFO L78 Accepts]: Start accepts. Automaton has 9865 states and 14679 transitions. Word has length 294 [2024-11-09 06:22:58,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:58,539 INFO L471 AbstractCegarLoop]: Abstraction has 9865 states and 14679 transitions. [2024-11-09 06:22:58,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-09 06:22:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 9865 states and 14679 transitions. [2024-11-09 06:22:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-09 06:22:58,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:58,550 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:58,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:22:58,550 INFO L396 AbstractCegarLoop]: === Iteration 18 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:22:58,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:58,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1992410326, now seen corresponding path program 1 times [2024-11-09 06:22:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:58,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860441272] [2024-11-09 06:22:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:58,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:23:03,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860441272] [2024-11-09 06:23:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860441272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:03,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:03,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:23:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550256998] [2024-11-09 06:23:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:03,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:03,281 INFO L87 Difference]: Start difference. First operand 9865 states and 14679 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:23:05,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:07,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:09,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:11,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:25,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:34,583 INFO L93 Difference]: Finished difference Result 19751 states and 29382 transitions. [2024-11-09 06:23:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 286 [2024-11-09 06:23:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:34,633 INFO L225 Difference]: With dead ends: 19751 [2024-11-09 06:23:34,633 INFO L226 Difference]: Without dead ends: 11494 [2024-11-09 06:23:34,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:34,664 INFO L432 NwaCegarLoop]: 4537 mSDtfsCounter, 2393 mSDsluCounter, 11401 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 15938 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:34,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 15938 Invalid, 1966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1956 Invalid, 4 Unknown, 0 Unchecked, 30.2s Time] [2024-11-09 06:23:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11494 states. [2024-11-09 06:23:35,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11494 to 11486. [2024-11-09 06:23:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11486 states, 7243 states have (on average 1.333977633577247) internal successors, (9662), 7254 states have internal predecessors, (9662), 3709 states have call successors, (3709), 529 states have call predecessors, (3709), 532 states have return successors, (3712), 3702 states have call predecessors, (3712), 3709 states have call successors, (3712) [2024-11-09 06:23:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11486 states to 11486 states and 17083 transitions. [2024-11-09 06:23:35,894 INFO L78 Accepts]: Start accepts. Automaton has 11486 states and 17083 transitions. Word has length 286 [2024-11-09 06:23:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:35,895 INFO L471 AbstractCegarLoop]: Abstraction has 11486 states and 17083 transitions. [2024-11-09 06:23:35,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:23:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 11486 states and 17083 transitions. [2024-11-09 06:23:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-09 06:23:35,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:35,913 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:35,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:23:35,914 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:23:35,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:35,914 INFO L85 PathProgramCache]: Analyzing trace with hash 539244793, now seen corresponding path program 1 times [2024-11-09 06:23:35,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:35,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033061317] [2024-11-09 06:23:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:35,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:23:40,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:40,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033061317] [2024-11-09 06:23:40,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033061317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:40,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:40,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:23:40,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854546459] [2024-11-09 06:23:40,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:40,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:40,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:40,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:40,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:40,593 INFO L87 Difference]: Start difference. First operand 11486 states and 17083 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:23:42,644 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 [] [2024-11-09 06:23:44,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:47,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:49,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:53,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:08,775 INFO L93 Difference]: Finished difference Result 22994 states and 34192 transitions. [2024-11-09 06:24:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:24:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 287 [2024-11-09 06:24:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:08,824 INFO L225 Difference]: With dead ends: 22994 [2024-11-09 06:24:08,824 INFO L226 Difference]: Without dead ends: 13116 [2024-11-09 06:24:08,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:24:08,853 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2384 mSDsluCounter, 11411 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 15949 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:08,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 15949 Invalid, 1968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1957 Invalid, 4 Unknown, 0 Unchecked, 27.0s Time] [2024-11-09 06:24:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13116 states. [2024-11-09 06:24:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13116 to 13108. [2024-11-09 06:24:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13108 states, 8264 states have (on average 1.3332526621490803) internal successors, (11018), 8277 states have internal predecessors, (11018), 4233 states have call successors, (4233), 605 states have call predecessors, (4233), 609 states have return successors, (4237), 4225 states have call predecessors, (4237), 4233 states have call successors, (4237) [2024-11-09 06:24:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13108 states to 13108 states and 19488 transitions. [2024-11-09 06:24:09,942 INFO L78 Accepts]: Start accepts. Automaton has 13108 states and 19488 transitions. Word has length 287 [2024-11-09 06:24:09,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:09,942 INFO L471 AbstractCegarLoop]: Abstraction has 13108 states and 19488 transitions. [2024-11-09 06:24:09,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:24:09,943 INFO L276 IsEmpty]: Start isEmpty. Operand 13108 states and 19488 transitions. [2024-11-09 06:24:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-09 06:24:09,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:09,952 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:09,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:24:09,952 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:24:09,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1639030527, now seen corresponding path program 1 times [2024-11-09 06:24:09,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:09,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051054506] [2024-11-09 06:24:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:24:14,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:14,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051054506] [2024-11-09 06:24:14,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051054506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:14,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:14,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:24:14,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077640662] [2024-11-09 06:24:14,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:14,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:24:14,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:14,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:24:14,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:24:14,557 INFO L87 Difference]: Start difference. First operand 13108 states and 19488 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:24:16,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:18,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:20,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:23,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:26,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:28,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:44,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:44,228 INFO L93 Difference]: Finished difference Result 26239 states and 39004 transitions. [2024-11-09 06:24:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:24:44,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 288 [2024-11-09 06:24:44,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:44,281 INFO L225 Difference]: With dead ends: 26239 [2024-11-09 06:24:44,281 INFO L226 Difference]: Without dead ends: 14739 [2024-11-09 06:24:44,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:24:44,318 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2381 mSDsluCounter, 11413 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:44,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 15951 Invalid, 1972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1961 Invalid, 4 Unknown, 0 Unchecked, 28.3s Time] [2024-11-09 06:24:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14739 states. [2024-11-09 06:24:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14739 to 14731. [2024-11-09 06:24:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14731 states, 9286 states have (on average 1.3326513030368297) internal successors, (12375), 9301 states have internal predecessors, (12375), 4757 states have call successors, (4757), 681 states have call predecessors, (4757), 686 states have return successors, (4762), 4748 states have call predecessors, (4762), 4757 states have call successors, (4762) [2024-11-09 06:24:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14731 states to 14731 states and 21894 transitions. [2024-11-09 06:24:45,525 INFO L78 Accepts]: Start accepts. Automaton has 14731 states and 21894 transitions. Word has length 288 [2024-11-09 06:24:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:45,526 INFO L471 AbstractCegarLoop]: Abstraction has 14731 states and 21894 transitions. [2024-11-09 06:24:45,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:24:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 14731 states and 21894 transitions. [2024-11-09 06:24:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-09 06:24:45,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:45,536 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:45,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:24:45,536 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:24:45,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash -178772818, now seen corresponding path program 1 times [2024-11-09 06:24:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884763435] [2024-11-09 06:24:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:24:50,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:50,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884763435] [2024-11-09 06:24:50,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884763435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:50,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:50,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:24:50,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190369963] [2024-11-09 06:24:50,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:50,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:24:50,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:24:50,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:24:50,154 INFO L87 Difference]: Start difference. First operand 14731 states and 21894 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:24:52,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:54,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:56,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:58,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:03,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:04,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:20,001 INFO L93 Difference]: Finished difference Result 29486 states and 43818 transitions. [2024-11-09 06:25:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:25:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 289 [2024-11-09 06:25:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:20,056 INFO L225 Difference]: With dead ends: 29486 [2024-11-09 06:25:20,057 INFO L226 Difference]: Without dead ends: 16363 [2024-11-09 06:25:20,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:20,088 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2381 mSDsluCounter, 11413 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:20,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 15951 Invalid, 1976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1963 Invalid, 5 Unknown, 0 Unchecked, 28.5s Time] [2024-11-09 06:25:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16363 states. [2024-11-09 06:25:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16363 to 16355. [2024-11-09 06:25:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16355 states, 10309 states have (on average 1.3321369676981278) internal successors, (13733), 10326 states have internal predecessors, (13733), 5281 states have call successors, (5281), 757 states have call predecessors, (5281), 763 states have return successors, (5287), 5271 states have call predecessors, (5287), 5281 states have call successors, (5287) [2024-11-09 06:25:21,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16355 states to 16355 states and 24301 transitions. [2024-11-09 06:25:21,673 INFO L78 Accepts]: Start accepts. Automaton has 16355 states and 24301 transitions. Word has length 289 [2024-11-09 06:25:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:21,673 INFO L471 AbstractCegarLoop]: Abstraction has 16355 states and 24301 transitions. [2024-11-09 06:25:21,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:25:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16355 states and 24301 transitions. [2024-11-09 06:25:21,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-09 06:25:21,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:21,684 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:21,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:25:21,684 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:25:21,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:21,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1869912796, now seen corresponding path program 1 times [2024-11-09 06:25:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:25:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938342621] [2024-11-09 06:25:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:25:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:25:26,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:25:26,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938342621] [2024-11-09 06:25:26,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938342621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:26,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:26,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:25:26,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997142024] [2024-11-09 06:25:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:26,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:25:26,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:25:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:25:26,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:26,832 INFO L87 Difference]: Start difference. First operand 16355 states and 24301 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:25:28,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:31,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:33,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:35,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:55,077 INFO L93 Difference]: Finished difference Result 32735 states and 48634 transitions. [2024-11-09 06:25:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:25:55,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 290 [2024-11-09 06:25:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:55,135 INFO L225 Difference]: With dead ends: 32735 [2024-11-09 06:25:55,135 INFO L226 Difference]: Without dead ends: 17988 [2024-11-09 06:25:55,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:55,167 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2381 mSDsluCounter, 11413 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:55,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 15951 Invalid, 1980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1967 Invalid, 4 Unknown, 0 Unchecked, 26.7s Time] [2024-11-09 06:25:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17988 states. [2024-11-09 06:25:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17988 to 17980. [2024-11-09 06:25:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17980 states, 11333 states have (on average 1.3316862260654725) internal successors, (15092), 11352 states have internal predecessors, (15092), 5805 states have call successors, (5805), 833 states have call predecessors, (5805), 840 states have return successors, (5812), 5794 states have call predecessors, (5812), 5805 states have call successors, (5812) [2024-11-09 06:25:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17980 states to 17980 states and 26709 transitions. [2024-11-09 06:25:56,841 INFO L78 Accepts]: Start accepts. Automaton has 17980 states and 26709 transitions. Word has length 290 [2024-11-09 06:25:56,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:56,842 INFO L471 AbstractCegarLoop]: Abstraction has 17980 states and 26709 transitions. [2024-11-09 06:25:56,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:25:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17980 states and 26709 transitions. [2024-11-09 06:25:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-09 06:25:56,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:56,860 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:56,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:25:56,860 INFO L396 AbstractCegarLoop]: === Iteration 23 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:25:56,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash -774295445, now seen corresponding path program 1 times [2024-11-09 06:25:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:25:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600160780] [2024-11-09 06:25:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:26:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:26:01,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:26:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600160780] [2024-11-09 06:26:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600160780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:01,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:26:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121190436] [2024-11-09 06:26:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:01,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:26:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:26:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:26:01,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:26:01,751 INFO L87 Difference]: Start difference. First operand 17980 states and 26709 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:26:03,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:05,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:08,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:10,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:14,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:23,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:32,242 INFO L93 Difference]: Finished difference Result 35986 states and 53452 transitions. [2024-11-09 06:26:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:26:32,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 291 [2024-11-09 06:26:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:32,316 INFO L225 Difference]: With dead ends: 35986 [2024-11-09 06:26:32,316 INFO L226 Difference]: Without dead ends: 19614 [2024-11-09 06:26:32,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:26:32,357 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2384 mSDsluCounter, 11411 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 15949 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:32,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 15949 Invalid, 1984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1968 Invalid, 5 Unknown, 0 Unchecked, 28.9s Time] [2024-11-09 06:26:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19614 states. [2024-11-09 06:26:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19614 to 19606. [2024-11-09 06:26:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19606 states, 12358 states have (on average 1.331283379187571) internal successors, (16452), 12379 states have internal predecessors, (16452), 6329 states have call successors, (6329), 909 states have call predecessors, (6329), 917 states have return successors, (6337), 6317 states have call predecessors, (6337), 6329 states have call successors, (6337) [2024-11-09 06:26:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19606 states to 19606 states and 29118 transitions. [2024-11-09 06:26:34,031 INFO L78 Accepts]: Start accepts. Automaton has 19606 states and 29118 transitions. Word has length 291 [2024-11-09 06:26:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:34,032 INFO L471 AbstractCegarLoop]: Abstraction has 19606 states and 29118 transitions. [2024-11-09 06:26:34,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:26:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19606 states and 29118 transitions. [2024-11-09 06:26:34,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-09 06:26:34,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:34,054 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:34,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:26:34,054 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:26:34,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash -552952397, now seen corresponding path program 1 times [2024-11-09 06:26:34,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:26:34,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130472018] [2024-11-09 06:26:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:34,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:26:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:26:39,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:26:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130472018] [2024-11-09 06:26:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130472018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:26:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359363449] [2024-11-09 06:26:39,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:39,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:26:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:26:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:26:39,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:26:39,918 INFO L87 Difference]: Start difference. First operand 19606 states and 29118 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:26:41,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:44,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:46,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:48,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:53,533 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 [] [2024-11-09 06:27:09,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:09,877 INFO L93 Difference]: Finished difference Result 39239 states and 58272 transitions. [2024-11-09 06:27:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:09,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 292 [2024-11-09 06:27:09,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:09,953 INFO L225 Difference]: With dead ends: 39239 [2024-11-09 06:27:09,954 INFO L226 Difference]: Without dead ends: 21241 [2024-11-09 06:27:09,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:09,993 INFO L432 NwaCegarLoop]: 4499 mSDtfsCounter, 2395 mSDsluCounter, 11323 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 12 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 15822 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:09,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 15822 Invalid, 1984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 1967 Invalid, 5 Unknown, 0 Unchecked, 28.2s Time] [2024-11-09 06:27:10,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21241 states. [2024-11-09 06:27:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21241 to 21233. [2024-11-09 06:27:11,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21233 states, 13384 states have (on average 1.3309175134488942) internal successors, (17813), 13407 states have internal predecessors, (17813), 6853 states have call successors, (6853), 985 states have call predecessors, (6853), 994 states have return successors, (6862), 6840 states have call predecessors, (6862), 6853 states have call successors, (6862) [2024-11-09 06:27:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21233 states to 21233 states and 31528 transitions. [2024-11-09 06:27:12,013 INFO L78 Accepts]: Start accepts. Automaton has 21233 states and 31528 transitions. Word has length 292 [2024-11-09 06:27:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:12,013 INFO L471 AbstractCegarLoop]: Abstraction has 21233 states and 31528 transitions. [2024-11-09 06:27:12,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:27:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 21233 states and 31528 transitions. [2024-11-09 06:27:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-09 06:27:12,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:12,028 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:12,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:27:12,029 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:27:12,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1491651362, now seen corresponding path program 1 times [2024-11-09 06:27:12,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:27:12,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083794267] [2024-11-09 06:27:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:27:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:27:17,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:27:17,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083794267] [2024-11-09 06:27:17,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083794267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:17,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:17,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362614568] [2024-11-09 06:27:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:17,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:17,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:27:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:17,456 INFO L87 Difference]: Start difference. First operand 21233 states and 31528 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:27:19,503 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 [] [2024-11-09 06:27:21,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:27:23,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:27:26,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:27:38,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:27:40,194 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 [] [2024-11-09 06:27:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:49,511 INFO L93 Difference]: Finished difference Result 42494 states and 63094 transitions. [2024-11-09 06:27:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:49,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2024-11-09 06:27:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:49,599 INFO L225 Difference]: With dead ends: 42494 [2024-11-09 06:27:49,599 INFO L226 Difference]: Without dead ends: 22869 [2024-11-09 06:27:49,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:49,649 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2387 mSDsluCounter, 11408 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 15946 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:49,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 15946 Invalid, 1989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1971 Invalid, 5 Unknown, 0 Unchecked, 30.2s Time] [2024-11-09 06:27:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2024-11-09 06:27:51,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 22861. [2024-11-09 06:27:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22861 states, 14411 states have (on average 1.330580806328499) internal successors, (19175), 14436 states have internal predecessors, (19175), 7377 states have call successors, (7377), 1061 states have call predecessors, (7377), 1071 states have return successors, (7387), 7363 states have call predecessors, (7387), 7377 states have call successors, (7387) [2024-11-09 06:27:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22861 states to 22861 states and 33939 transitions. [2024-11-09 06:27:51,822 INFO L78 Accepts]: Start accepts. Automaton has 22861 states and 33939 transitions. Word has length 293 [2024-11-09 06:27:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:51,823 INFO L471 AbstractCegarLoop]: Abstraction has 22861 states and 33939 transitions. [2024-11-09 06:27:51,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:27:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 22861 states and 33939 transitions. [2024-11-09 06:27:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-09 06:27:51,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:51,846 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:51,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:27:51,846 INFO L396 AbstractCegarLoop]: === Iteration 26 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:27:51,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:51,846 INFO L85 PathProgramCache]: Analyzing trace with hash 31956257, now seen corresponding path program 1 times [2024-11-09 06:27:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:27:51,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705641337] [2024-11-09 06:27:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:51,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:27:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-09 06:27:56,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:27:56,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705641337] [2024-11-09 06:27:56,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705641337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:56,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587278636] [2024-11-09 06:27:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:56,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:27:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:56,495 INFO L87 Difference]: Start difference. First operand 22861 states and 33939 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:27:58,540 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 [] [2024-11-09 06:28:00,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:02,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:05,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:08,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:17,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:18,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:28,488 INFO L93 Difference]: Finished difference Result 45751 states and 67918 transitions. [2024-11-09 06:28:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:28:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 294 [2024-11-09 06:28:28,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:28,597 INFO L225 Difference]: With dead ends: 45751 [2024-11-09 06:28:28,597 INFO L226 Difference]: Without dead ends: 24498 [2024-11-09 06:28:28,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:28:28,646 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 2384 mSDsluCounter, 11411 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 15949 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:28,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 15949 Invalid, 1996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1978 Invalid, 4 Unknown, 0 Unchecked, 29.9s Time] [2024-11-09 06:28:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24498 states. [2024-11-09 06:28:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24498 to 24490. [2024-11-09 06:28:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24490 states, 15439 states have (on average 1.3302675043720449) internal successors, (20538), 15466 states have internal predecessors, (20538), 7901 states have call successors, (7901), 1137 states have call predecessors, (7901), 1148 states have return successors, (7912), 7886 states have call predecessors, (7912), 7901 states have call successors, (7912) [2024-11-09 06:28:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24490 states to 24490 states and 36351 transitions. [2024-11-09 06:28:30,770 INFO L78 Accepts]: Start accepts. Automaton has 24490 states and 36351 transitions. Word has length 294 [2024-11-09 06:28:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:30,770 INFO L471 AbstractCegarLoop]: Abstraction has 24490 states and 36351 transitions. [2024-11-09 06:28:30,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:28:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24490 states and 36351 transitions. [2024-11-09 06:28:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 06:28:30,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:30,785 INFO L215 NwaCegarLoop]: trace histogram [25, 17, 17, 17, 17, 17, 17, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:28:30,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 06:28:30,785 INFO L396 AbstractCegarLoop]: === Iteration 27 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:28:30,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:30,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1425069219, now seen corresponding path program 1 times [2024-11-09 06:28:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:28:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267015877] [2024-11-09 06:28:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:30,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:28:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1462 trivial. 0 not checked. [2024-11-09 06:28:35,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:28:35,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267015877] [2024-11-09 06:28:35,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267015877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:28:35,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:28:35,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:28:35,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869340438] [2024-11-09 06:28:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:28:35,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:28:35,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:28:35,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:28:35,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:28:35,670 INFO L87 Difference]: Start difference. First operand 24490 states and 36351 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:28:37,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:39,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:43,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:45,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:53,616 INFO L93 Difference]: Finished difference Result 48992 states and 72713 transitions. [2024-11-09 06:28:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:28:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 295 [2024-11-09 06:28:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:53,724 INFO L225 Difference]: With dead ends: 48992 [2024-11-09 06:28:53,724 INFO L226 Difference]: Without dead ends: 26110 [2024-11-09 06:28:53,782 INFO L431 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 [2024-11-09 06:28:53,783 INFO L432 NwaCegarLoop]: 4562 mSDtfsCounter, 2434 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 6903 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:53,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 6903 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 870 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 06:28:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26110 states. [2024-11-09 06:28:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26110 to 26104. [2024-11-09 06:28:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26104 states, 16453 states have (on average 1.3302741141433174) internal successors, (21887), 16482 states have internal predecessors, (21887), 8425 states have call successors, (8425), 1213 states have call predecessors, (8425), 1224 states have return successors, (8436), 8408 states have call predecessors, (8436), 8425 states have call successors, (8436) [2024-11-09 06:28:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26104 states to 26104 states and 38748 transitions. [2024-11-09 06:28:56,078 INFO L78 Accepts]: Start accepts. Automaton has 26104 states and 38748 transitions. Word has length 295 [2024-11-09 06:28:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:56,078 INFO L471 AbstractCegarLoop]: Abstraction has 26104 states and 38748 transitions. [2024-11-09 06:28:56,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 06:28:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 26104 states and 38748 transitions. [2024-11-09 06:28:56,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 06:28:56,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:56,094 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:28:56,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 06:28:56,094 INFO L396 AbstractCegarLoop]: === Iteration 28 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:28:56,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:56,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1614901229, now seen corresponding path program 1 times [2024-11-09 06:28:56,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:28:56,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211726958] [2024-11-09 06:28:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:56,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2024-11-09 06:29:01,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:29:01,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211726958] [2024-11-09 06:29:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211726958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148867505] [2024-11-09 06:29:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:01,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:29:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:01,679 INFO L87 Difference]: Start difference. First operand 26104 states and 38748 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 06:29:03,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:05,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:08,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:19,317 INFO L93 Difference]: Finished difference Result 26104 states and 38748 transitions. [2024-11-09 06:29:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:19,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 295 [2024-11-09 06:29:19,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:19,413 INFO L225 Difference]: With dead ends: 26104 [2024-11-09 06:29:19,413 INFO L226 Difference]: Without dead ends: 26102 [2024-11-09 06:29:19,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:29:19,422 INFO L432 NwaCegarLoop]: 2377 mSDtfsCounter, 2514 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 7189 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:19,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 7189 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 917 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2024-11-09 06:29:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26102 states. [2024-11-09 06:29:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26102 to 26102. [2024-11-09 06:29:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26102 states, 16452 states have (on average 1.3293216630196936) internal successors, (21870), 16480 states have internal predecessors, (21870), 8425 states have call successors, (8425), 1213 states have call predecessors, (8425), 1224 states have return successors, (8436), 8408 states have call predecessors, (8436), 8425 states have call successors, (8436) [2024-11-09 06:29:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26102 states to 26102 states and 38731 transitions. [2024-11-09 06:29:21,552 INFO L78 Accepts]: Start accepts. Automaton has 26102 states and 38731 transitions. Word has length 295 [2024-11-09 06:29:21,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:21,552 INFO L471 AbstractCegarLoop]: Abstraction has 26102 states and 38731 transitions. [2024-11-09 06:29:21,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 06:29:21,553 INFO L276 IsEmpty]: Start isEmpty. Operand 26102 states and 38731 transitions. [2024-11-09 06:29:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-09 06:29:21,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:21,587 INFO L215 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:21,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 06:29:21,587 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:29:21,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:21,588 INFO L85 PathProgramCache]: Analyzing trace with hash -417628812, now seen corresponding path program 1 times [2024-11-09 06:29:21,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:29:21,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049127683] [2024-11-09 06:29:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:21,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2024-11-09 06:29:27,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:29:27,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049127683] [2024-11-09 06:29:27,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049127683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:27,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:27,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27189132] [2024-11-09 06:29:27,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:27,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:29:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:27,141 INFO L87 Difference]: Start difference. First operand 26102 states and 38731 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-09 06:29:29,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:31,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:33,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:35,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:40,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:49,687 INFO L93 Difference]: Finished difference Result 26102 states and 38731 transitions. [2024-11-09 06:29:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 312 [2024-11-09 06:29:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:49,719 INFO L225 Difference]: With dead ends: 26102 [2024-11-09 06:29:49,719 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:29:49,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:29:49,766 INFO L432 NwaCegarLoop]: 2376 mSDtfsCounter, 74 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 9438 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:49,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 9438 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1194 Invalid, 5 Unknown, 0 Unchecked, 20.6s Time] [2024-11-09 06:29:49,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:29:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:29:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:29:49,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 312 [2024-11-09 06:29:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:49,799 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:29:49,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-09 06:29:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:29:49,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:29:49,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-09 06:29:49,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-11-09 06:29:49,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-11-09 06:29:49,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 06:29:49,805 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:49,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.