./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:55:20,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:55:20,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:55:20,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:55:20,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:55:20,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:55:20,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:55:21,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:55:21,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:55:21,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:55:21,008 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:55:21,010 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:55:21,010 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:55:21,012 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:55:21,013 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:55:21,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:55:21,014 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:55:21,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:55:21,015 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:55:21,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:55:21,017 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:55:21,017 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:55:21,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:55:21,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:55:21,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:55:21,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:55:21,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:55:21,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:55:21,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:55:21,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:55:21,040 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:55:21,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:55:21,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:55:21,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:21,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:55:21,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:55:21,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:55:21,042 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:55:21,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:55:21,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:55:21,043 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:55:21,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:55:21,043 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2023-11-19 04:55:21,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:21,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:21,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:21,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:21,432 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:21,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 04:55:24,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:25,509 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:25,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 04:55:25,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/data/77db61dfb/75d9a901b8a049e987e107a0cdea3853/FLAG222dc05d8 [2023-11-19 04:55:25,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/data/77db61dfb/75d9a901b8a049e987e107a0cdea3853 [2023-11-19 04:55:25,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:25,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:25,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:25,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:25,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:25,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:25" (1/1) ... [2023-11-19 04:55:25,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62adf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:25, skipping insertion in model container [2023-11-19 04:55:25,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:25" (1/1) ... [2023-11-19 04:55:25,814 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:29,128 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-19 04:55:29,135 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-19 04:55:29,136 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-19 04:55:29,137 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-19 04:55:29,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:29,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:55:29,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5252] [2023-11-19 04:55:29,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5259] [2023-11-19 04:55:29,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2023-11-19 04:55:29,525 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5302-5303] [2023-11-19 04:55:29,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5308-5310] [2023-11-19 04:55:29,545 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5526-5527] [2023-11-19 04:55:29,550 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5560-5561] [2023-11-19 04:55:29,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2023-11-19 04:55:29,810 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-19 04:55:29,811 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-19 04:55:29,812 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-19 04:55:29,813 WARN L240 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_5d74c2fd-e37b-4925-af3a-1790b4925ec7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-19 04:55:29,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:30,083 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:55:30,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30 WrapperNode [2023-11-19 04:55:30,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:30,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:30,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:55:30,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:55:30,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,369 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4773 [2023-11-19 04:55:30,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:30,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:55:30,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:55:30,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:55:30,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:55:30,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:55:30,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:55:30,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:55:30,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (1/1) ... [2023-11-19 04:55:30,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:30,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:30,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:55:30,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d74c2fd-e37b-4925-af3a-1790b4925ec7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:55:30,855 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 04:55:30,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 04:55:30,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:55:30,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:55:30,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:55:30,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:55:30,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:55:30,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:55:30,858 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:55:30,858 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-19 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-19 04:55:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:55:30,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:55:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 04:55:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-19 04:55:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-19 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 04:55:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 04:55:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 04:55:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-19 04:55:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-19 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-19 04:55:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-19 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:55:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 04:55:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 04:55:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:55:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:55:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:55:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:55:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:55:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:55:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:55:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-19 04:55:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-19 04:55:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-19 04:55:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-19 04:55:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:55:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:55:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:55:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:55:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:55:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:55:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:55:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-19 04:55:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-19 04:55:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:55:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:55:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:55:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:55:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:55:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:55:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:55:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:55:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:55:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:55:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:55:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:55:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:55:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:55:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 04:55:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 04:55:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:55:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:55:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:55:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:55:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-19 04:55:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-19 04:55:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:55:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:55:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-19 04:55:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-19 04:55:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:55:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:55:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:55:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:55:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:55:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:55:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:55:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 04:55:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 04:55:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:55:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-19 04:55:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-19 04:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:55:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:55:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 04:55:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 04:55:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:55:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:55:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:55:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:55:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:55:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:55:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-19 04:55:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-19 04:55:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-19 04:55:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-19 04:55:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 04:55:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 04:55:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:55:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:55:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-19 04:55:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-19 04:55:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 04:55:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 04:55:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:55:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:55:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-19 04:55:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-19 04:55:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:55:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:55:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:55:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:55:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-19 04:55:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-19 04:55:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:55:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:55:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:55:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:55:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:55:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:55:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:55:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:55:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:55:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:55:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-19 04:55:30,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-19 04:55:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:55:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-19 04:55:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-19 04:55:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-19 04:55:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:55:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:55:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:55:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:55:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:55:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:55:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 04:55:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:55:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:55:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-19 04:55:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:55:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-19 04:55:30,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 04:55:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 04:55:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-19 04:55:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-19 04:55:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:55:30,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:55:31,758 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:55:31,767 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:55:32,848 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:55:37,660 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:55:37,807 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:40,610 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:40,610 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:55:40,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:40 BoogieIcfgContainer [2023-11-19 04:55:40,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:40,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:40,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:40,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:40,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:55:25" (1/3) ... [2023-11-19 04:55:40,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b11a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:40, skipping insertion in model container [2023-11-19 04:55:40,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:30" (2/3) ... [2023-11-19 04:55:40,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b11a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:40, skipping insertion in model container [2023-11-19 04:55:40,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:40" (3/3) ... [2023-11-19 04:55:40,643 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 04:55:40,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:40,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:55:40,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:40,785 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@75568b24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:40,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:55:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) [2023-11-19 04:55:40,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:55:40,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:40,840 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:40,841 INFO L420 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)] === [2023-11-19 04:55:40,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -854933239, now seen corresponding path program 1 times [2023-11-19 04:55:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:40,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379256296] [2023-11-19 04:55:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:40,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 04:55:41,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:41,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379256296] [2023-11-19 04:55:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379256296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:41,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:41,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770057902] [2023-11-19 04:55:41,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:41,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:41,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:41,745 INFO L87 Difference]: Start difference. First operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:55:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:45,121 INFO L93 Difference]: Finished difference Result 3945 states and 5694 transitions. [2023-11-19 04:55:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:45,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-19 04:55:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:45,175 INFO L225 Difference]: With dead ends: 3945 [2023-11-19 04:55:45,176 INFO L226 Difference]: Without dead ends: 2597 [2023-11-19 04:55:45,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:45,195 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 1810 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:45,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3262 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 04:55:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-11-19 04:55:45,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2593. [2023-11-19 04:55:45,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 1510 states have (on average 1.2629139072847682) internal successors, (1907), 1567 states have internal predecessors, (1907), 890 states have call successors, (890), 191 states have call predecessors, (890), 190 states have return successors, (886), 880 states have call predecessors, (886), 886 states have call successors, (886) [2023-11-19 04:55:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3683 transitions. [2023-11-19 04:55:45,479 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3683 transitions. Word has length 101 [2023-11-19 04:55:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:45,480 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 3683 transitions. [2023-11-19 04:55:45,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:55:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3683 transitions. [2023-11-19 04:55:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 04:55:45,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:45,490 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:45,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:55:45,491 INFO L420 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)] === [2023-11-19 04:55:45,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:45,491 INFO L85 PathProgramCache]: Analyzing trace with hash -515938408, now seen corresponding path program 1 times [2023-11-19 04:55:45,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:45,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630084845] [2023-11-19 04:55:45,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:45,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 04:55:45,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630084845] [2023-11-19 04:55:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630084845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:45,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:45,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992673895] [2023-11-19 04:55:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:45,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:45,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:45,986 INFO L87 Difference]: Start difference. First operand 2593 states and 3683 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:55:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:49,811 INFO L93 Difference]: Finished difference Result 7137 states and 10119 transitions. [2023-11-19 04:55:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:49,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2023-11-19 04:55:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:49,860 INFO L225 Difference]: With dead ends: 7137 [2023-11-19 04:55:49,860 INFO L226 Difference]: Without dead ends: 4561 [2023-11-19 04:55:49,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:49,877 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 1451 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:49,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 3298 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 04:55:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2023-11-19 04:55:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 4532. [2023-11-19 04:55:50,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 2613 states have (on average 1.2537313432835822) internal successors, (3276), 2717 states have internal predecessors, (3276), 1563 states have call successors, (1563), 360 states have call predecessors, (1563), 353 states have return successors, (1579), 1530 states have call predecessors, (1579), 1559 states have call successors, (1579) [2023-11-19 04:55:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6418 transitions. [2023-11-19 04:55:50,319 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6418 transitions. Word has length 105 [2023-11-19 04:55:50,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:50,320 INFO L495 AbstractCegarLoop]: Abstraction has 4532 states and 6418 transitions. [2023-11-19 04:55:50,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:55:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6418 transitions. [2023-11-19 04:55:50,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 04:55:50,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:50,332 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-11-19 04:55:50,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:55:50,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:55:50,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1129792742, now seen corresponding path program 1 times [2023-11-19 04:55:50,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:50,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600657724] [2023-11-19 04:55:50,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:50,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-19 04:55:50,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600657724] [2023-11-19 04:55:50,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600657724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:50,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:55:50,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834197669] [2023-11-19 04:55:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:51,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:55:51,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:55:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:55:51,003 INFO L87 Difference]: Start difference. First operand 4532 states and 6418 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-19 04:55:57,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:57,983 INFO L93 Difference]: Finished difference Result 11596 states and 16344 transitions. [2023-11-19 04:55:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:55:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2023-11-19 04:55:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:58,044 INFO L225 Difference]: With dead ends: 11596 [2023-11-19 04:55:58,045 INFO L226 Difference]: Without dead ends: 7081 [2023-11-19 04:55:58,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:55:58,074 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 4425 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:58,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 5067 Invalid, 3365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 2408 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-19 04:55:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2023-11-19 04:55:58,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 7023. [2023-11-19 04:55:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7023 states, 4088 states have (on average 1.2446183953033267) internal successors, (5088), 4238 states have internal predecessors, (5088), 2358 states have call successors, (2358), 586 states have call predecessors, (2358), 574 states have return successors, (2367), 2308 states have call predecessors, (2367), 2354 states have call successors, (2367) [2023-11-19 04:55:58,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9813 transitions. [2023-11-19 04:55:58,636 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9813 transitions. Word has length 143 [2023-11-19 04:55:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:58,637 INFO L495 AbstractCegarLoop]: Abstraction has 7023 states and 9813 transitions. [2023-11-19 04:55:58,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-19 04:55:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9813 transitions. [2023-11-19 04:55:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-19 04:55:58,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:58,641 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-11-19 04:55:58,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:55:58,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:55:58,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2084613167, now seen corresponding path program 1 times [2023-11-19 04:55:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:58,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876408533] [2023-11-19 04:55:58,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:58,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-19 04:55:58,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:58,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876408533] [2023-11-19 04:55:58,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876408533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:58,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:58,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:58,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371354842] [2023-11-19 04:55:58,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:58,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:58,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:58,958 INFO L87 Difference]: Start difference. First operand 7023 states and 9813 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:56:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:02,833 INFO L93 Difference]: Finished difference Result 16569 states and 23136 transitions. [2023-11-19 04:56:02,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:02,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 138 [2023-11-19 04:56:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:02,920 INFO L225 Difference]: With dead ends: 16569 [2023-11-19 04:56:02,920 INFO L226 Difference]: Without dead ends: 9563 [2023-11-19 04:56:02,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:02,957 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1723 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 3212 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:02,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 3212 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-19 04:56:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9563 states. [2023-11-19 04:56:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9563 to 9534. [2023-11-19 04:56:03,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9534 states, 5545 states have (on average 1.2411181244364293) internal successors, (6882), 5763 states have internal predecessors, (6882), 3188 states have call successors, (3188), 821 states have call predecessors, (3188), 798 states have return successors, (3206), 3094 states have call predecessors, (3206), 3184 states have call successors, (3206) [2023-11-19 04:56:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9534 states to 9534 states and 13276 transitions. [2023-11-19 04:56:03,701 INFO L78 Accepts]: Start accepts. Automaton has 9534 states and 13276 transitions. Word has length 138 [2023-11-19 04:56:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:03,702 INFO L495 AbstractCegarLoop]: Abstraction has 9534 states and 13276 transitions. [2023-11-19 04:56:03,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:56:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 9534 states and 13276 transitions. [2023-11-19 04:56:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 04:56:03,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:03,706 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:03,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:56:03,707 INFO L420 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)] === [2023-11-19 04:56:03,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1505377198, now seen corresponding path program 1 times [2023-11-19 04:56:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:03,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624023372] [2023-11-19 04:56:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:03,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-19 04:56:04,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:04,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624023372] [2023-11-19 04:56:04,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624023372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:04,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:04,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:56:04,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536140482] [2023-11-19 04:56:04,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:04,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:56:04,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:04,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:56:04,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:04,192 INFO L87 Difference]: Start difference. First operand 9534 states and 13276 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:56:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:08,183 INFO L93 Difference]: Finished difference Result 9540 states and 13281 transitions. [2023-11-19 04:56:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:56:08,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-11-19 04:56:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:08,297 INFO L225 Difference]: With dead ends: 9540 [2023-11-19 04:56:08,297 INFO L226 Difference]: Without dead ends: 9538 [2023-11-19 04:56:08,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:56:08,307 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1854 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:08,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 4852 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-19 04:56:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9538 states.