./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-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E --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 81007b1d742f027747be9b525fc18b28f43885637f2e3001eda4f4679abc042c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:29:30,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:29:31,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:29:31,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:29:31,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:29:31,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:29:31,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:29:31,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:29:31,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:29:31,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:29:31,108 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:29:31,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:29:31,109 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:29:31,110 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:29:31,110 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:29:31,110 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:29:31,110 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:29:31,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:29:31,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:29:31,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:29:31,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:29:31,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:29:31,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:29:31,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:31,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:29:31,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:29:31,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:29:31,113 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:29:31,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:29:31,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:29:31,113 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:29:31,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:29:31,114 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E 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 -> 81007b1d742f027747be9b525fc18b28f43885637f2e3001eda4f4679abc042c [2024-11-14 05:29:31,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:29:31,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:29:31,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:29:31,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:29:31,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:29:31,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i Unable to find full path for "g++" [2024-11-14 05:29:33,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:29:34,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:29:34,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2024-11-14 05:29:34,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/data/40f48e128/c5f841c860fe477b8ab9480244c537ef/FLAG32c8a3c9e [2024-11-14 05:29:34,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/data/40f48e128/c5f841c860fe477b8ab9480244c537ef [2024-11-14 05:29:34,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:29:34,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:29:34,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:34,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:29:34,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:29:34,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:34" (1/1) ... [2024-11-14 05:29:34,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506ed129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:34, skipping insertion in model container [2024-11-14 05:29:34,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:34" (1/1) ... [2024-11-14 05:29:34,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:29:37,148 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2024-11-14 05:29:37,152 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2024-11-14 05:29:37,153 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2024-11-14 05:29:37,153 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2024-11-14 05:29:37,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:37,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:29:37,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [5513] [2024-11-14 05:29:37,423 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/smsc95xx.c"), "i" (84), "i" (12UL)); [5769-5770] [2024-11-14 05:29:37,427 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/smsc95xx.c"), "i" (111), "i" (12UL)); [5809-5810] [2024-11-14 05:29:37,451 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/smsc95xx.c"), "i" (344), "i" (12UL)); [6161-6162] [2024-11-14 05:29:37,453 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/smsc95xx.c"), "i" (345), "i" (12UL)); [6172-6173] [2024-11-14 05:29:37,458 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/smsc95xx.c"), "i" (382), "i" (12UL)); [6241-6242] [2024-11-14 05:29:37,459 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/smsc95xx.c"), "i" (383), "i" (12UL)); [6252-6253] [2024-11-14 05:29:37,657 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/smsc95xx.c"), "i" (1678), "i" (12UL)); [8606-8607] [2024-11-14 05:29:37,672 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/smsc95xx.c"), "i" (1827), "i" (12UL)); [8880-8881] [2024-11-14 05:29:37,756 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2024-11-14 05:29:37,756 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2024-11-14 05:29:37,757 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2024-11-14 05:29:37,758 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_5265dc8a-4ba8-43f0-9353-71e3067b871b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2024-11-14 05:29:37,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:38,151 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:29:38,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38 WrapperNode [2024-11-14 05:29:38,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:38,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:38,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:29:38,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:29:38,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,597 INFO L138 Inliner]: procedures = 390, calls = 3060, calls flagged for inlining = 184, calls inlined = 169, statements flattened = 7900 [2024-11-14 05:29:38,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:38,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:29:38,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:29:38,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:29:38,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:38,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:39,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:39,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:39,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:39,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:29:39,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:29:39,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:29:39,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:29:39,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (1/1) ... [2024-11-14 05:29:39,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:39,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:39,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:29:39,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5265dc8a-4ba8-43f0-9353-71e3067b871b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:29:39,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 05:29:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 05:29:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2024-11-14 05:29:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2024-11-14 05:29:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2024-11-14 05:29:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2024-11-14 05:29:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:29:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:29:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2024-11-14 05:29:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2024-11-14 05:29:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2024-11-14 05:29:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2024-11-14 05:29:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2024-11-14 05:29:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2024-11-14 05:29:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:29:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:29:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2024-11-14 05:29:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2024-11-14 05:29:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2024-11-14 05:29:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2024-11-14 05:29:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-14 05:29:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-14 05:29:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2024-11-14 05:29:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2024-11-14 05:29:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2024-11-14 05:29:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2024-11-14 05:29:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 05:29:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 05:29:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2024-11-14 05:29:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2024-11-14 05:29:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2024-11-14 05:29:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-14 05:29:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 05:29:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 05:29:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 05:29:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 05:29:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2024-11-14 05:29:39,192 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 [2024-11-14 05:29:39,192 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 [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2024-11-14 05:29:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2024-11-14 05:29:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2024-11-14 05:29:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2024-11-14 05:29:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2024-11-14 05:29:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 05:29:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 05:29:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:29:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:29:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2024-11-14 05:29:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2024-11-14 05:29:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:29:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 05:29:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 05:29:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:29:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2024-11-14 05:29:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2024-11-14 05:29:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2024-11-14 05:29:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2024-11-14 05:29:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2024-11-14 05:29:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2024-11-14 05:29:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2024-11-14 05:29:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2024-11-14 05:29:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2024-11-14 05:29:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:29:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-14 05:29:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-14 05:29:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:29:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:29:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2024-11-14 05:29:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2024-11-14 05:29:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2024-11-14 05:29:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2024-11-14 05:29:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 05:29:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 05:29:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:29:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 05:29:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 05:29:40,540 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:29:40,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:29:41,022 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:29:59,454 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 05:30:00,691 INFO L? ?]: Removed 2608 outVars from TransFormulas that were not future-live. [2024-11-14 05:30:00,691 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:30:04,251 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:30:04,252 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:30:04,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:04 BoogieIcfgContainer [2024-11-14 05:30:04,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:30:04,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:30:04,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:30:04,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:30:04,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:29:34" (1/3) ... [2024-11-14 05:30:04,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ee3350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:04, skipping insertion in model container [2024-11-14 05:30:04,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:38" (2/3) ... [2024-11-14 05:30:04,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ee3350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:04, skipping insertion in model container [2024-11-14 05:30:04,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:04" (3/3) ... [2024-11-14 05:30:04,264 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2024-11-14 05:30:04,282 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:30:04,288 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i that has 81 procedures, 1535 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2024-11-14 05:30:04,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:30:04,439 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;@5d3b2660, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:30:04,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 05:30:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 1533 states, 971 states have (on average 1.37178166838311) internal successors, (1332), 977 states have internal predecessors, (1332), 480 states have call successors, (480), 80 states have call predecessors, (480), 79 states have return successors, (473), 473 states have call predecessors, (473), 473 states have call successors, (473) [2024-11-14 05:30:04,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-14 05:30:04,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:04,476 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 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] [2024-11-14 05:30:04,477 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)] === [2024-11-14 05:30:04,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:04,485 INFO L85 PathProgramCache]: Analyzing trace with hash 757327333, now seen corresponding path program 1 times [2024-11-14 05:30:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112045902] [2024-11-14 05:30:04,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2024-11-14 05:31:00,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:00,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112045902] [2024-11-14 05:31:00,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112045902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:00,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:31:00,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:31:00,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777688356] [2024-11-14 05:31:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:00,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:31:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:00,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:31:00,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:31:00,393 INFO L87 Difference]: Start difference. First operand has 1533 states, 971 states have (on average 1.37178166838311) internal successors, (1332), 977 states have internal predecessors, (1332), 480 states have call successors, (480), 80 states have call predecessors, (480), 79 states have return successors, (473), 473 states have call predecessors, (473), 473 states have call successors, (473) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:31:02,529 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 [] [2024-11-14 05:31:04,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:31:10,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:31:11,696 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 [] [2024-11-14 05:31:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:15,106 INFO L93 Difference]: Finished difference Result 4444 states and 6688 transitions. [2024-11-14 05:31:15,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:31:15,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 204 [2024-11-14 05:31:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:15,166 INFO L225 Difference]: With dead ends: 4444 [2024-11-14 05:31:15,167 INFO L226 Difference]: Without dead ends: 2937 [2024-11-14 05:31:15,187 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 [2024-11-14 05:31:15,194 INFO L432 NwaCegarLoop]: 1972 mSDtfsCounter, 2137 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:15,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 3898 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 648 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2024-11-14 05:31:15,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2024-11-14 05:31:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2933. [2024-11-14 05:31:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 1882 states have (on average 1.369287991498406) internal successors, (2577), 1893 states have internal predecessors, (2577), 894 states have call successors, (894), 155 states have call predecessors, (894), 154 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2024-11-14 05:31:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 4361 transitions. [2024-11-14 05:31:15,595 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 4361 transitions. Word has length 204 [2024-11-14 05:31:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:15,600 INFO L471 AbstractCegarLoop]: Abstraction has 2933 states and 4361 transitions. [2024-11-14 05:31:15,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:31:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 4361 transitions. [2024-11-14 05:31:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-14 05:31:15,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:15,617 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:15,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:31:15,618 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)] === [2024-11-14 05:31:15,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:15,618 INFO L85 PathProgramCache]: Analyzing trace with hash 928466300, now seen corresponding path program 1 times [2024-11-14 05:31:15,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:15,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076115255] [2024-11-14 05:31:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:15,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2024-11-14 05:32:11,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076115255] [2024-11-14 05:32:11,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076115255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:11,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:11,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:32:11,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877947794] [2024-11-14 05:32:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:11,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:32:11,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:11,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:32:11,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:32:11,520 INFO L87 Difference]: Start difference. First operand 2933 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:32:13,659 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 [] [2024-11-14 05:32:15,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:25,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:29,450 INFO L93 Difference]: Finished difference Result 7015 states and 10378 transitions. [2024-11-14 05:32:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:32:29,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 217 [2024-11-14 05:32:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:29,492 INFO L225 Difference]: With dead ends: 7015 [2024-11-14 05:32:29,492 INFO L226 Difference]: Without dead ends: 4119 [2024-11-14 05:32:29,510 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 [2024-11-14 05:32:29,511 INFO L432 NwaCegarLoop]: 2064 mSDtfsCounter, 1938 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:29,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 3966 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 686 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2024-11-14 05:32:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2024-11-14 05:32:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 4092. [2024-11-14 05:32:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4092 states, 2606 states have (on average 1.3526477359938602) internal successors, (3525), 2625 states have internal predecessors, (3525), 1253 states have call successors, (1253), 231 states have call predecessors, (1253), 230 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:32:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4092 states to 4092 states and 6027 transitions. [2024-11-14 05:32:29,860 INFO L78 Accepts]: Start accepts. Automaton has 4092 states and 6027 transitions. Word has length 217 [2024-11-14 05:32:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:29,862 INFO L471 AbstractCegarLoop]: Abstraction has 4092 states and 6027 transitions. [2024-11-14 05:32:29,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:32:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4092 states and 6027 transitions. [2024-11-14 05:32:29,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-14 05:32:29,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:29,884 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 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] [2024-11-14 05:32:29,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:32:29,884 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)] === [2024-11-14 05:32:29,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:29,886 INFO L85 PathProgramCache]: Analyzing trace with hash 18058171, now seen corresponding path program 1 times [2024-11-14 05:32:29,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:29,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662299264] [2024-11-14 05:32:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:29,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2024-11-14 05:33:29,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:29,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662299264] [2024-11-14 05:33:29,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662299264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:29,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:29,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:33:29,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024954180] [2024-11-14 05:33:29,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:29,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:33:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:29,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:33:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:33:29,608 INFO L87 Difference]: Start difference. First operand 4092 states and 6027 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) [2024-11-14 05:33:31,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:34,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:36,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:46,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:48,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:50,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:52,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:54,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:56,370 INFO L93 Difference]: Finished difference Result 4098 states and 6032 transitions. [2024-11-14 05:33:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:33:56,370 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 249 [2024-11-14 05:33:56,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:56,401 INFO L225 Difference]: With dead ends: 4098 [2024-11-14 05:33:56,401 INFO L226 Difference]: Without dead ends: 4096 [2024-11-14 05:33:56,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:33:56,408 INFO L432 NwaCegarLoop]: 1941 mSDtfsCounter, 2196 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 5810 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:56,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 5810 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 4 Unknown, 0 Unchecked, 26.4s Time] [2024-11-14 05:33:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2024-11-14 05:33:56,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 4096. [2024-11-14 05:33:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4096 states, 2609 states have (on average 1.3522422384055193) internal successors, (3528), 2628 states have internal predecessors, (3528), 1253 states have call successors, (1253), 232 states have call predecessors, (1253), 231 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:33:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4096 states to 4096 states and 6030 transitions. [2024-11-14 05:33:56,691 INFO L78 Accepts]: Start accepts. Automaton has 4096 states and 6030 transitions. Word has length 249 [2024-11-14 05:33:56,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:56,695 INFO L471 AbstractCegarLoop]: Abstraction has 4096 states and 6030 transitions. [2024-11-14 05:33:56,695 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) [2024-11-14 05:33:56,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4096 states and 6030 transitions. [2024-11-14 05:33:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-14 05:33:56,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:56,707 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:56,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:33:56,708 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)] === [2024-11-14 05:33:56,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1556101439, now seen corresponding path program 1 times [2024-11-14 05:33:56,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:56,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141769887] [2024-11-14 05:33:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2024-11-14 05:34:55,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:55,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141769887] [2024-11-14 05:34:55,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141769887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:55,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:55,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:55,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563666360] [2024-11-14 05:34:55,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:55,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:34:55,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:34:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:34:55,249 INFO L87 Difference]: Start difference. First operand 4096 states and 6030 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 05:34:57,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:59,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:01,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:11,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:13,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:18,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:18,394 INFO L93 Difference]: Finished difference Result 4102 states and 6035 transitions. [2024-11-14 05:35:18,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:35:18,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 254 [2024-11-14 05:35:18,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:18,424 INFO L225 Difference]: With dead ends: 4102 [2024-11-14 05:35:18,424 INFO L226 Difference]: Without dead ends: 4100 [2024-11-14 05:35:18,427 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 [2024-11-14 05:35:18,429 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 2192 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:18,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 5814 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 958 Invalid, 3 Unknown, 0 Unchecked, 22.8s Time] [2024-11-14 05:35:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2024-11-14 05:35:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 4100. [2024-11-14 05:35:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4100 states, 2612 states have (on average 1.3518376722817764) internal successors, (3531), 2631 states have internal predecessors, (3531), 1253 states have call successors, (1253), 233 states have call predecessors, (1253), 232 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:35:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 6033 transitions. [2024-11-14 05:35:18,699 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 6033 transitions. Word has length 254 [2024-11-14 05:35:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:18,699 INFO L471 AbstractCegarLoop]: Abstraction has 4100 states and 6033 transitions. [2024-11-14 05:35:18,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 05:35:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 6033 transitions. [2024-11-14 05:35:18,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-14 05:35:18,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:18,708 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:35:18,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:35:18,710 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)] === [2024-11-14 05:35:18,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1854522824, now seen corresponding path program 1 times [2024-11-14 05:35:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:18,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682102985] [2024-11-14 05:35:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2024-11-14 05:36:20,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:36:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682102985] [2024-11-14 05:36:20,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682102985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:20,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:36:20,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:36:20,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63511281] [2024-11-14 05:36:20,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:20,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:36:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:36:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:36:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:36:20,879 INFO L87 Difference]: Start difference. First operand 4100 states and 6033 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 05:36:23,007 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 [] [2024-11-14 05:36:25,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:27,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:40,881 INFO L93 Difference]: Finished difference Result 4106 states and 6038 transitions. [2024-11-14 05:36:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:36:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 258 [2024-11-14 05:36:40,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:40,908 INFO L225 Difference]: With dead ends: 4106 [2024-11-14 05:36:40,908 INFO L226 Difference]: Without dead ends: 4104 [2024-11-14 05:36:40,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:36:40,912 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 2191 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:40,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 5814 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 958 Invalid, 3 Unknown, 0 Unchecked, 19.7s Time] [2024-11-14 05:36:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2024-11-14 05:36:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4104. [2024-11-14 05:36:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4104 states, 2615 states have (on average 1.351434034416826) internal successors, (3534), 2634 states have internal predecessors, (3534), 1253 states have call successors, (1253), 234 states have call predecessors, (1253), 233 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:36:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 6036 transitions. [2024-11-14 05:36:41,235 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 6036 transitions. Word has length 258 [2024-11-14 05:36:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:41,236 INFO L471 AbstractCegarLoop]: Abstraction has 4104 states and 6036 transitions. [2024-11-14 05:36:41,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 05:36:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 6036 transitions. [2024-11-14 05:36:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-14 05:36:41,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:41,246 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 4, 3, 3, 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] [2024-11-14 05:36:41,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:36:41,246 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)] === [2024-11-14 05:36:41,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2053259362, now seen corresponding path program 1 times [2024-11-14 05:36:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:41,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958529077] [2024-11-14 05:36:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:41,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2024-11-14 05:37:41,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:41,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958529077] [2024-11-14 05:37:41,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958529077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:41,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:41,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:37:41,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018803318] [2024-11-14 05:37:41,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:41,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:37:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:37:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:37:41,632 INFO L87 Difference]: Start difference. First operand 4104 states and 6036 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-14 05:37:43,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:45,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:48,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:57,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:00,360 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 [] [2024-11-14 05:38:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:01,893 INFO L93 Difference]: Finished difference Result 4110 states and 6041 transitions. [2024-11-14 05:38:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:38:01,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 263 [2024-11-14 05:38:01,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:01,919 INFO L225 Difference]: With dead ends: 4110 [2024-11-14 05:38:01,919 INFO L226 Difference]: Without dead ends: 4108 [2024-11-14 05:38:01,922 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 [2024-11-14 05:38:01,923 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 2190 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:01,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 5814 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 4 Unknown, 0 Unchecked, 20.0s Time] [2024-11-14 05:38:01,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2024-11-14 05:38:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 4108. [2024-11-14 05:38:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 2618 states have (on average 1.3510313216195569) internal successors, (3537), 2637 states have internal predecessors, (3537), 1253 states have call successors, (1253), 235 states have call predecessors, (1253), 234 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:38:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 6039 transitions. [2024-11-14 05:38:02,197 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 6039 transitions. Word has length 263 [2024-11-14 05:38:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:02,197 INFO L471 AbstractCegarLoop]: Abstraction has 4108 states and 6039 transitions. [2024-11-14 05:38:02,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-14 05:38:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 6039 transitions. [2024-11-14 05:38:02,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-14 05:38:02,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:02,210 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 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] [2024-11-14 05:38:02,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:38:02,210 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)] === [2024-11-14 05:38:02,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1076275977, now seen corresponding path program 1 times [2024-11-14 05:38:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:02,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063835459] [2024-11-14 05:38:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-14 05:38:53,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:53,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063835459] [2024-11-14 05:38:53,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063835459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:53,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:53,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:38:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111596537] [2024-11-14 05:38:53,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:53,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:38:53,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:53,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:38:53,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:38:53,753 INFO L87 Difference]: Start difference. First operand 4108 states and 6039 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 05:38:55,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:58,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:00,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:11,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:13,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:15,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:18,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:19,983 INFO L93 Difference]: Finished difference Result 4114 states and 6044 transitions. [2024-11-14 05:39:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:39:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 267 [2024-11-14 05:39:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:20,015 INFO L225 Difference]: With dead ends: 4114 [2024-11-14 05:39:20,015 INFO L226 Difference]: Without dead ends: 4112 [2024-11-14 05:39:20,017 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 [2024-11-14 05:39:20,018 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 2190 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:20,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 5814 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 4 Unknown, 0 Unchecked, 25.9s Time] [2024-11-14 05:39:20,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2024-11-14 05:39:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2024-11-14 05:39:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 2621 states have (on average 1.3506295307134681) internal successors, (3540), 2640 states have internal predecessors, (3540), 1253 states have call successors, (1253), 236 states have call predecessors, (1253), 235 states have return successors, (1249), 1244 states have call predecessors, (1249), 1249 states have call successors, (1249) [2024-11-14 05:39:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 6042 transitions. [2024-11-14 05:39:20,311 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 6042 transitions. Word has length 267 [2024-11-14 05:39:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:20,311 INFO L471 AbstractCegarLoop]: Abstraction has 4112 states and 6042 transitions. [2024-11-14 05:39:20,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 05:39:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 6042 transitions. [2024-11-14 05:39:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-14 05:39:20,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:20,325 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:20,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:39:20,326 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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)] === [2024-11-14 05:39:20,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1440259747, now seen corresponding path program 1 times [2024-11-14 05:39:20,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:20,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061755971] [2024-11-14 05:39:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:20,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:40:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2024-11-14 05:40:12,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:40:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061755971] [2024-11-14 05:40:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061755971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:12,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:40:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814969790] [2024-11-14 05:40:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:12,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:40:12,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:12,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:12,421 INFO L87 Difference]: Start difference. First operand 4112 states and 6042 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:40:14,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:16,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:23,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:26,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:27,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:30,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:31,321 INFO L93 Difference]: Finished difference Result 10999 states and 16162 transitions. [2024-11-14 05:40:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:31,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 380 [2024-11-14 05:40:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:31,362 INFO L225 Difference]: With dead ends: 10999 [2024-11-14 05:40:31,362 INFO L226 Difference]: Without dead ends: 6924 [2024-11-14 05:40:31,382 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 [2024-11-14 05:40:31,383 INFO L432 NwaCegarLoop]: 2099 mSDtfsCounter, 1574 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:31,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 4016 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 676 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2024-11-14 05:40:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2024-11-14 05:40:31,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6873. [2024-11-14 05:40:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6873 states, 4405 states have (on average 1.3530079455164585) internal successors, (5960), 4444 states have internal predecessors, (5960), 2066 states have call successors, (2066), 400 states have call predecessors, (2066), 399 states have return successors, (2062), 2043 states have call predecessors, (2062), 2062 states have call successors, (2062) [2024-11-14 05:40:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6873 states to 6873 states and 10088 transitions. [2024-11-14 05:40:31,870 INFO L78 Accepts]: Start accepts. Automaton has 6873 states and 10088 transitions. Word has length 380 [2024-11-14 05:40:31,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:31,872 INFO L471 AbstractCegarLoop]: Abstraction has 6873 states and 10088 transitions. [2024-11-14 05:40:31,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:40:31,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6873 states and 10088 transitions. [2024-11-14 05:40:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-14 05:40:31,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:31,884 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:31,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:40:31,885 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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)] === [2024-11-14 05:40:31,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash 988530380, now seen corresponding path program 1 times [2024-11-14 05:40:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:31,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252107802] [2024-11-14 05:40:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2024-11-14 05:41:22,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:22,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252107802] [2024-11-14 05:41:22,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252107802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:22,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:22,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:41:22,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824777163] [2024-11-14 05:41:22,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:22,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:41:22,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:22,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:41:22,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:41:22,435 INFO L87 Difference]: Start difference. First operand 6873 states and 10088 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:41:24,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:26,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:36,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:39,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:41,232 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 [] [2024-11-14 05:41:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:42,757 INFO L93 Difference]: Finished difference Result 15586 states and 22848 transitions. [2024-11-14 05:41:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:41:42,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 374 [2024-11-14 05:41:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:42,813 INFO L225 Difference]: With dead ends: 15586 [2024-11-14 05:41:42,813 INFO L226 Difference]: Without dead ends: 8750 [2024-11-14 05:41:42,842 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 [2024-11-14 05:41:42,843 INFO L432 NwaCegarLoop]: 2029 mSDtfsCounter, 1881 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:42,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 3953 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 661 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2024-11-14 05:41:42,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8750 states. [2024-11-14 05:41:43,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8750 to 8697. [2024-11-14 05:41:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8697 states, 5572 states have (on average 1.3512203876525484) internal successors, (7529), 5637 states have internal predecessors, (7529), 2602 states have call successors, (2602), 521 states have call predecessors, (2602), 520 states have return successors, (2598), 2551 states have call predecessors, (2598), 2598 states have call successors, (2598) [2024-11-14 05:41:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8697 states to 8697 states and 12729 transitions. [2024-11-14 05:41:43,446 INFO L78 Accepts]: Start accepts. Automaton has 8697 states and 12729 transitions. Word has length 374 [2024-11-14 05:41:43,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:43,447 INFO L471 AbstractCegarLoop]: Abstraction has 8697 states and 12729 transitions. [2024-11-14 05:41:43,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:41:43,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8697 states and 12729 transitions. [2024-11-14 05:41:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-14 05:41:43,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:43,454 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 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] [2024-11-14 05:41:43,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:41:43,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 05:41:43,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1980183683, now seen corresponding path program 1 times [2024-11-14 05:41:43,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:43,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813128385] [2024-11-14 05:41:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:43,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:42:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:42:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2024-11-14 05:42:37,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:42:37,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813128385] [2024-11-14 05:42:37,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813128385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:42:37,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:42:37,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:42:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984852909] [2024-11-14 05:42:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:42:37,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:42:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:42:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:42:37,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:42:37,085 INFO L87 Difference]: Start difference. First operand 8697 states and 12729 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 05:42:39,166 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 [] [2024-11-14 05:42:41,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:43,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:53,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:55,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:57,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:00,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:02,534 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 [] [2024-11-14 05:43:04,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:43:04,451 INFO L93 Difference]: Finished difference Result 8703 states and 12734 transitions. [2024-11-14 05:43:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:43:04,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 272 [2024-11-14 05:43:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:43:04,507 INFO L225 Difference]: With dead ends: 8703 [2024-11-14 05:43:04,507 INFO L226 Difference]: Without dead ends: 8701 [2024-11-14 05:43:04,514 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 [2024-11-14 05:43:04,515 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 2189 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:43:04,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 5814 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 4 Unknown, 0 Unchecked, 26.8s Time] [2024-11-14 05:43:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8701 states. [2024-11-14 05:43:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8701 to 8701. [2024-11-14 05:43:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8701 states, 5575 states have (on average 1.3510313901345292) internal successors, (7532), 5640 states have internal predecessors, (7532), 2602 states have call successors, (2602), 522 states have call predecessors, (2602), 521 states have return successors, (2598), 2551 states have call predecessors, (2598), 2598 states have call successors, (2598) [2024-11-14 05:43:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8701 states to 8701 states and 12732 transitions. [2024-11-14 05:43:05,166 INFO L78 Accepts]: Start accepts. Automaton has 8701 states and 12732 transitions. Word has length 272 [2024-11-14 05:43:05,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:43:05,167 INFO L471 AbstractCegarLoop]: Abstraction has 8701 states and 12732 transitions. [2024-11-14 05:43:05,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 05:43:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 8701 states and 12732 transitions. [2024-11-14 05:43:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-14 05:43:05,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:43:05,174 INFO L215 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:43:05,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:43:05,175 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)] === [2024-11-14 05:43:05,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:43:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -301060552, now seen corresponding path program 1 times [2024-11-14 05:43:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:43:05,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983773169] [2024-11-14 05:43:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:43:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms