./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire --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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:43,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:43,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:11:43,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:43,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:43,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:43,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:43,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:43,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:43,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:43,990 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:43,990 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:43,991 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:43,991 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:11:43,992 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:43,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:43,993 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:11:43,994 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:11:43,994 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:43,995 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:11:43,996 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:11:43,997 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:11:43,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:43,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:43,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:11:43,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:44,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:44,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:44,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:44,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:44,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:44,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:44,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:44,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:44,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:44,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:44,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:44,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:44,007 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:11:44,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:11:44,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:44,009 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:44,009 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:44,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:44,010 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2023-11-23 21:11:44,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:44,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:44,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:44,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:44,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:44,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-11-23 21:11:47,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:48,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:48,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-11-23 21:11:48,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/data/4b12d047b/7d6fe7a22bb64d18a6768f3936325fc3/FLAG73a5db41c [2023-11-23 21:11:48,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/data/4b12d047b/7d6fe7a22bb64d18a6768f3936325fc3 [2023-11-23 21:11:48,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:48,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:48,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:48,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:48,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:48,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:48" (1/1) ... [2023-11-23 21:11:48,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae2f3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:48, skipping insertion in model container [2023-11-23 21:11:48,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:48" (1/1) ... [2023-11-23 21:11:48,871 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:53,686 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2023-11-23 21:11:53,691 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2023-11-23 21:11:53,691 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2023-11-23 21:11:53,692 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2023-11-23 21:11:53,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:53,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:54,048 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)); [6518-6519] [2023-11-23 21:11:54,050 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"); [6524-6526] [2023-11-23 21:11:54,064 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)); [6758-6759] [2023-11-23 21:11:54,066 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)); [6792-6793] [2023-11-23 21:11:54,392 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2023-11-23 21:11:54,392 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2023-11-23 21:11:54,393 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2023-11-23 21:11:54,394 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_a5bb99d2-e5c6-40a2-9713-cb30204a811d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2023-11-23 21:11:54,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:54,680 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:54,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54 WrapperNode [2023-11-23 21:11:54,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:54,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:54,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:54,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:54,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:54,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,169 INFO L138 Inliner]: procedures = 522, calls = 3840, calls flagged for inlining = 277, calls inlined = 261, statements flattened = 7475 [2023-11-23 21:11:55,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:55,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:55,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:55,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:55,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:55,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:55,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:55,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:55,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:55,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:55,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:55,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:55,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5bb99d2-e5c6-40a2-9713-cb30204a811d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-11-23 21:11:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-11-23 21:11:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2023-11-23 21:11:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2023-11-23 21:11:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2023-11-23 21:11:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2023-11-23 21:11:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-11-23 21:11:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-11-23 21:11:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:11:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:11:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:11:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:11:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:11:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:11:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2023-11-23 21:11:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2023-11-23 21:11:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2023-11-23 21:11:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2023-11-23 21:11:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:11:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:11:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:11:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:11:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:11:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:11:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:11:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:11:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2023-11-23 21:11:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2023-11-23 21:11:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2023-11-23 21:11:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2023-11-23 21:11:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-11-23 21:11:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-11-23 21:11:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:11:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:11:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2023-11-23 21:11:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2023-11-23 21:11:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2023-11-23 21:11:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2023-11-23 21:11:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2023-11-23 21:11:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2023-11-23 21:11:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:11:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:11:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:11:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:11:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2023-11-23 21:11:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2023-11-23 21:11:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:11:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-11-23 21:11:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-11-23 21:11:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-11-23 21:11:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-11-23 21:11:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2023-11-23 21:11:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2023-11-23 21:11:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:11:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-11-23 21:11:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-11-23 21:11:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2023-11-23 21:11:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2023-11-23 21:11:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:11:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:11:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:11:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:11:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2023-11-23 21:11:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2023-11-23 21:11:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:11:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:11:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:11:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-11-23 21:11:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-11-23 21:11:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:11:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:11:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:11:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2023-11-23 21:11:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2023-11-23 21:11:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:11:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:11:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:11:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:11:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:11:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:11:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:11:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:11:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-23 21:11:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-23 21:11:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2023-11-23 21:11:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2023-11-23 21:11:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2023-11-23 21:11:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2023-11-23 21:11:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:11:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:11:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:11:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:11:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-11-23 21:11:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-11-23 21:11:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-11-23 21:11:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-11-23 21:11:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2023-11-23 21:11:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2023-11-23 21:11:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:11:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:11:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-11-23 21:11:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-11-23 21:11:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:11:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:11:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:11:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:11:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:11:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-23 21:11:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-23 21:11:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-11-23 21:11:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-11-23 21:11:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-11-23 21:11:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-11-23 21:11:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:11:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:11:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:11:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:11:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:11:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:11:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:11:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:11:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:11:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-11-23 21:11:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-11-23 21:11:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2023-11-23 21:11:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2023-11-23 21:11:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2023-11-23 21:11:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2023-11-23 21:11:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:11:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:11:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2023-11-23 21:11:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2023-11-23 21:11:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-11-23 21:11:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-11-23 21:11:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2023-11-23 21:11:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2023-11-23 21:11:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2023-11-23 21:11:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2023-11-23 21:11:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2023-11-23 21:11:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2023-11-23 21:11:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-23 21:11:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-23 21:11:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:11:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:11:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2023-11-23 21:11:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2023-11-23 21:11:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:11:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:11:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:11:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:11:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2023-11-23 21:11:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2023-11-23 21:11:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:11:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:11:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2023-11-23 21:11:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2023-11-23 21:11:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-11-23 21:11:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-11-23 21:11:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-11-23 21:11:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-11-23 21:11:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2023-11-23 21:11:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2023-11-23 21:11:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 21:11:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 21:11:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:11:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:11:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:11:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:11:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2023-11-23 21:11:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2023-11-23 21:11:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:11:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:11:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:11:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:11:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-11-23 21:11:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-11-23 21:11:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:11:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2023-11-23 21:11:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2023-11-23 21:11:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:11:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:11:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:11:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:11:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-23 21:11:55,907 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-23 21:11:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:11:55,907 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:11:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:11:55,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:11:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2023-11-23 21:11:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2023-11-23 21:11:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2023-11-23 21:11:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2023-11-23 21:11:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2023-11-23 21:11:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2023-11-23 21:11:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2023-11-23 21:11:55,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2023-11-23 21:11:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-23 21:11:55,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-23 21:11:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-11-23 21:11:55,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-11-23 21:11:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2023-11-23 21:11:55,922 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2023-11-23 21:11:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:11:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-11-23 21:11:55,923 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-11-23 21:11:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-23 21:11:55,923 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-23 21:11:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:11:55,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:11:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2023-11-23 21:11:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2023-11-23 21:11:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2023-11-23 21:11:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2023-11-23 21:11:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2023-11-23 21:11:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2023-11-23 21:11:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 21:11:55,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 21:11:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-23 21:11:55,925 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-23 21:11:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:11:55,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:11:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2023-11-23 21:11:55,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2023-11-23 21:11:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:11:55,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:11:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-11-23 21:11:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-11-23 21:11:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2023-11-23 21:11:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2023-11-23 21:11:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-23 21:11:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:11:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:11:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:11:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2023-11-23 21:11:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2023-11-23 21:11:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:11:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:11:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2023-11-23 21:11:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2023-11-23 21:11:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-11-23 21:11:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-11-23 21:11:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-11-23 21:11:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-11-23 21:11:57,331 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:57,344 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:57,889 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:12:08,420 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:12:08,736 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:14,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:14,653 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:12:14,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:14 BoogieIcfgContainer [2023-11-23 21:12:14,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:14,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:14,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:14,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:14,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:48" (1/3) ... [2023-11-23 21:12:14,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55371a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:14, skipping insertion in model container [2023-11-23 21:12:14,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54" (2/3) ... [2023-11-23 21:12:14,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55371a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:14, skipping insertion in model container [2023-11-23 21:12:14,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:14" (3/3) ... [2023-11-23 21:12:14,672 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2023-11-23 21:12:14,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:14,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:12:14,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:14,813 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;@7c841bd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:14,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:12:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 2550 states, 1206 states have (on average 1.252072968490879) internal successors, (1510), 1244 states have internal predecessors, (1510), 1227 states have call successors, (1227), 115 states have call predecessors, (1227), 114 states have return successors, (1219), 1202 states have call predecessors, (1219), 1219 states have call successors, (1219) [2023-11-23 21:12:14,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-11-23 21:12:14,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:14,866 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:14,867 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)] === [2023-11-23 21:12:14,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash -288658084, now seen corresponding path program 1 times [2023-11-23 21:12:14,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:14,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507664980] [2023-11-23 21:12:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:14,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-11-23 21:12:16,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507664980] [2023-11-23 21:12:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507664980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:16,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:16,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093507917] [2023-11-23 21:12:16,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:16,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:16,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:16,585 INFO L87 Difference]: Start difference. First operand has 2550 states, 1206 states have (on average 1.252072968490879) internal successors, (1510), 1244 states have internal predecessors, (1510), 1227 states have call successors, (1227), 115 states have call predecessors, (1227), 114 states have return successors, (1219), 1202 states have call predecessors, (1219), 1219 states have call successors, (1219) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-23 21:12:18,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:22,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:12:26,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:12:28,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:12:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:29,223 INFO L93 Difference]: Finished difference Result 7430 states and 11616 transitions. [2023-11-23 21:12:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:29,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 381 [2023-11-23 21:12:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:29,318 INFO L225 Difference]: With dead ends: 7430 [2023-11-23 21:12:29,318 INFO L226 Difference]: Without dead ends: 4939 [2023-11-23 21:12:29,352 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 [2023-11-23 21:12:29,357 INFO L413 NwaCegarLoop]: 3543 mSDtfsCounter, 3758 mSDsluCounter, 3499 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:29,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3758 Valid, 7042 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 848 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2023-11-23 21:12:29,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2023-11-23 21:12:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4935. [2023-11-23 21:12:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 2338 states have (on average 1.248502994011976) internal successors, (2919), 2409 states have internal predecessors, (2919), 2370 states have call successors, (2370), 225 states have call predecessors, (2370), 224 states have return successors, (2366), 2332 states have call predecessors, (2366), 2366 states have call successors, (2366) [2023-11-23 21:12:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7655 transitions. [2023-11-23 21:12:30,091 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7655 transitions. Word has length 381 [2023-11-23 21:12:30,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:30,094 INFO L495 AbstractCegarLoop]: Abstraction has 4935 states and 7655 transitions. [2023-11-23 21:12:30,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-23 21:12:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7655 transitions. [2023-11-23 21:12:30,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-23 21:12:30,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:30,106 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:30,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:30,106 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)] === [2023-11-23 21:12:30,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1306939643, now seen corresponding path program 1 times [2023-11-23 21:12:30,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:30,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913142693] [2023-11-23 21:12:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:30,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2023-11-23 21:12:30,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:30,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913142693] [2023-11-23 21:12:30,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913142693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:30,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:30,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:30,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561903654] [2023-11-23 21:12:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:30,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:30,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:30,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:30,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:30,961 INFO L87 Difference]: Start difference. First operand 4935 states and 7655 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39)