./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-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:34,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:34,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:55:34,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:34,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:34,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:34,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:34,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:34,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:34,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:34,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:34,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:34,652 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:34,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:34,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:34,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:34,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:34,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:34,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:34,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:34,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:34,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:34,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:34,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:34,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:34,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:34,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:34,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:34,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:34,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:34,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:34,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:34,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:34,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:34,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:34,666 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:34,666 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 [2023-11-19 07:55:35,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:35,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:35,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:35,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:35,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:35,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-19 07:55:38,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:39,037 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:39,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-19 07:55:39,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/data/5b420222f/3deb9b14594a429caa389a76693a87e7/FLAG31335514f [2023-11-19 07:55:39,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/data/5b420222f/3deb9b14594a429caa389a76693a87e7 [2023-11-19 07:55:39,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:39,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:39,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:39,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:39,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:39,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:39" (1/1) ... [2023-11-19 07:55:39,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5976b309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:39, skipping insertion in model container [2023-11-19 07:55:39,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:39" (1/1) ... [2023-11-19 07:55:39,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:44,190 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2023-11-19 07:55:44,195 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2023-11-19 07:55:44,196 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2023-11-19 07:55:44,197 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2023-11-19 07:55:44,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:44,342 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:44,498 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)); [5801] [2023-11-19 07:55:44,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5808] [2023-11-19 07:55:44,547 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)); [5910-5911] [2023-11-19 07:55:44,549 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)); [5944-5945] [2023-11-19 07:55:44,550 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" (103), "i" (12UL)); [5982-5983] [2023-11-19 07:55:44,551 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" (115), "i" (12UL)); [6019-6020] [2023-11-19 07:55:44,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6277] [2023-11-19 07:55:44,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6304] [2023-11-19 07:55:44,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7257] [2023-11-19 07:55:44,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7375] [2023-11-19 07:55:44,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7494] [2023-11-19 07:55:44,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8510] [2023-11-19 07:55:44,668 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"); [9066] [2023-11-19 07:55:44,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [9073] [2023-11-19 07:55:44,670 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)); [9119-9120] [2023-11-19 07:55:44,671 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"); [9125-9127] [2023-11-19 07:55:44,677 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [9388-9389] [2023-11-19 07:55:44,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9395] [2023-11-19 07:55:44,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9658] [2023-11-19 07:55:44,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10251] [2023-11-19 07:55:44,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [10511] [2023-11-19 07:55:44,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [14812] [2023-11-19 07:55:44,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15437] [2023-11-19 07:55:44,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15914] [2023-11-19 07:55:44,956 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2023-11-19 07:55:44,957 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2023-11-19 07:55:44,957 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2023-11-19 07:55:44,958 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_300bd9f9-7591-4500-a57b-fc1e2c1509b2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2023-11-19 07:55:44,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:45,355 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:55:45,363 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:45,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45 WrapperNode [2023-11-19 07:55:45,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:45,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:45,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:45,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:45,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:45,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,264 INFO L138 Inliner]: procedures = 567, calls = 5462, calls flagged for inlining = 290, calls inlined = 262, statements flattened = 14154 [2023-11-19 07:55:46,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:46,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:46,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:46,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:46,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:46,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:47,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:47,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:47,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:47,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:47,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (1/1) ... [2023-11-19 07:55:47,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:47,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:47,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:47,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300bd9f9-7591-4500-a57b-fc1e2c1509b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2023-11-19 07:55:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2023-11-19 07:55:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2023-11-19 07:55:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2023-11-19 07:55:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 07:55:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 07:55:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:55:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:55:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 07:55:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 07:55:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 07:55:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 07:55:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2023-11-19 07:55:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2023-11-19 07:55:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2023-11-19 07:55:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2023-11-19 07:55:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:55:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:55:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:55:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:55:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:55:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:55:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 07:55:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 07:55:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 07:55:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 07:55:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 07:55:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 07:55:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 07:55:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 07:55:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 07:55:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 07:55:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 07:55:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 07:55:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 07:55:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 07:55:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-19 07:55:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-19 07:55:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:55:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:55:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 07:55:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 07:55:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:55:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 07:55:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 07:55:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 07:55:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 07:55:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2023-11-19 07:55:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2023-11-19 07:55:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 07:55:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 07:55:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 07:55:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 07:55:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 07:55:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 07:55:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:55:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:55:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:55:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:55:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 07:55:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 07:55:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2023-11-19 07:55:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2023-11-19 07:55:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_61 [2023-11-19 07:55:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_61 [2023-11-19 07:55:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2023-11-19 07:55:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2023-11-19 07:55:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 07:55:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 07:55:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2023-11-19 07:55:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2023-11-19 07:55:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 07:55:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 07:55:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2023-11-19 07:55:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2023-11-19 07:55:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2023-11-19 07:55:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2023-11-19 07:55:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2023-11-19 07:55:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2023-11-19 07:55:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:55:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2023-11-19 07:55:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2023-11-19 07:55:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2023-11-19 07:55:47,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2023-11-19 07:55:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 07:55:47,291 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 07:55:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:55:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:55:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:55:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 07:55:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 07:55:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 07:55:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 07:55:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 07:55:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 07:55:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 07:55:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 07:55:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:55:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:55:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 07:55:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 07:55:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 07:55:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 07:55:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 07:55:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 07:55:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2023-11-19 07:55:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2023-11-19 07:55:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 07:55:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 07:55:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 07:55:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 07:55:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2023-11-19 07:55:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2023-11-19 07:55:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2023-11-19 07:55:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2023-11-19 07:55:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:55:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:55:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 07:55:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 07:55:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 07:55:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 07:55:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 07:55:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 07:55:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 07:55:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 07:55:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:55:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:55:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:55:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:55:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:55:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2023-11-19 07:55:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2023-11-19 07:55:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-19 07:55:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-19 07:55:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 07:55:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 07:55:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:55:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:55:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2023-11-19 07:55:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2023-11-19 07:55:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 07:55:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 07:55:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 07:55:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 07:55:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:55:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:55:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 07:55:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 07:55:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2023-11-19 07:55:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2023-11-19 07:55:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 07:55:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 07:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:55:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2023-11-19 07:55:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2023-11-19 07:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2023-11-19 07:55:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2023-11-19 07:55:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:55:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:55:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:55:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:55:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-11-19 07:55:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-11-19 07:55:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:55:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:55:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-19 07:55:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-19 07:55:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2023-11-19 07:55:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2023-11-19 07:55:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 07:55:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 07:55:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-19 07:55:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-19 07:55:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-19 07:55:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-19 07:55:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 07:55:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 07:55:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2023-11-19 07:55:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2023-11-19 07:55:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2023-11-19 07:55:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2023-11-19 07:55:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 07:55:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 07:55:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-19 07:55:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-19 07:55:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-11-19 07:55:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-11-19 07:55:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:55:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:55:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 07:55:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 07:55:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2023-11-19 07:55:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2023-11-19 07:55:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-11-19 07:55:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-11-19 07:55:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 07:55:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 07:55:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2023-11-19 07:55:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2023-11-19 07:55:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 07:55:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 07:55:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:55:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 07:55:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 07:55:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-19 07:55:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-19 07:55:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2023-11-19 07:55:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2023-11-19 07:55:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:55:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:55:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:55:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2023-11-19 07:55:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2023-11-19 07:55:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2023-11-19 07:55:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2023-11-19 07:55:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:55:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:55:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2023-11-19 07:55:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2023-11-19 07:55:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 07:55:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 07:55:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-19 07:55:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-19 07:55:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2023-11-19 07:55:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2023-11-19 07:55:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 07:55:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 07:55:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 07:55:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 07:55:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2023-11-19 07:55:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2023-11-19 07:55:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 07:55:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 07:55:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2023-11-19 07:55:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2023-11-19 07:55:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2023-11-19 07:55:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2023-11-19 07:55:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 07:55:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 07:55:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 07:55:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 07:55:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 07:55:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 07:55:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_62 [2023-11-19 07:55:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_62 [2023-11-19 07:55:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:55:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:55:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:55:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:55:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2023-11-19 07:55:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2023-11-19 07:55:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:55:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:55:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61___0 [2023-11-19 07:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61___0 [2023-11-19 07:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-19 07:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-19 07:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2023-11-19 07:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2023-11-19 07:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 07:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 07:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2023-11-19 07:55:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2023-11-19 07:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 07:55:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 07:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 07:55:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 07:55:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 07:55:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 07:55:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 07:55:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 07:55:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 07:55:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 07:55:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2023-11-19 07:55:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2023-11-19 07:55:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 07:55:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 07:55:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2023-11-19 07:55:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2023-11-19 07:55:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2023-11-19 07:55:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2023-11-19 07:55:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 07:55:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 07:55:48,660 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:48,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:50,097 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:56:01,809 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 07:56:02,125 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:02,233 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:02,234 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:56:02,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:02 BoogieIcfgContainer [2023-11-19 07:56:02,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:02,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:02,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:02,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:02,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:39" (1/3) ... [2023-11-19 07:56:02,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7ff7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:02, skipping insertion in model container [2023-11-19 07:56:02,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:45" (2/3) ... [2023-11-19 07:56:02,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7ff7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:02, skipping insertion in model container [2023-11-19 07:56:02,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:02" (3/3) ... [2023-11-19 07:56:02,276 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-19 07:56:02,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:02,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 07:56:02,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:02,447 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=PETRI_NET, 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;@17b02900, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:02,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 07:56:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 4495 states, 3301 states have (on average 1.4622841563162678) internal successors, (4827), 3398 states have internal predecessors, (4827), 1055 states have call successors, (1055), 138 states have call predecessors, (1055), 137 states have return successors, (1048), 1012 states have call predecessors, (1048), 1048 states have call successors, (1048) [2023-11-19 07:56:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-19 07:56:02,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:02,501 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:02,501 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 07:56:02,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1497598912, now seen corresponding path program 1 times [2023-11-19 07:56:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083878836] [2023-11-19 07:56:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:56:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:56:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:56:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:56:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:56:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:56:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:56:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:56:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:56:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:56:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:56:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:56:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-19 07:56:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-19 07:56:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-19 07:56:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2023-11-19 07:56:04,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:04,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083878836] [2023-11-19 07:56:04,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083878836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:04,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:04,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627163292] [2023-11-19 07:56:04,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:04,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:04,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:04,413 INFO L87 Difference]: Start difference. First operand has 4495 states, 3301 states have (on average 1.4622841563162678) internal successors, (4827), 3398 states have internal predecessors, (4827), 1055 states have call successors, (1055), 138 states have call predecessors, (1055), 137 states have return successors, (1048), 1012 states have call predecessors, (1048), 1048 states have call successors, (1048) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 07:56:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:16,480 INFO L93 Difference]: Finished difference Result 13487 states and 21176 transitions. [2023-11-19 07:56:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:16,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2023-11-19 07:56:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:16,598 INFO L225 Difference]: With dead ends: 13487 [2023-11-19 07:56:16,598 INFO L226 Difference]: Without dead ends: 9012 [2023-11-19 07:56:16,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:16,661 INFO L413 NwaCegarLoop]: 5734 mSDtfsCounter, 7842 mSDsluCounter, 8710 mSDsCounter, 0 mSdLazyCounter, 3828 mSolverCounterSat, 2622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8805 SdHoareTripleChecker+Valid, 14444 SdHoareTripleChecker+Invalid, 6450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2622 IncrementalHoareTripleChecker+Valid, 3828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:16,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8805 Valid, 14444 Invalid, 6450 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2622 Valid, 3828 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-11-19 07:56:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9012 states. [2023-11-19 07:56:17,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9012 to 8830. [2023-11-19 07:56:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8830 states, 6510 states have (on average 1.438863287250384) internal successors, (9367), 6701 states have internal predecessors, (9367), 2047 states have call successors, (2047), 271 states have call predecessors, (2047), 270 states have return successors, (2043), 1971 states have call predecessors, (2043), 2043 states have call successors, (2043) [2023-11-19 07:56:17,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 13457 transitions. [2023-11-19 07:56:17,572 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 13457 transitions. Word has length 171 [2023-11-19 07:56:17,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:17,577 INFO L495 AbstractCegarLoop]: Abstraction has 8830 states and 13457 transitions. [2023-11-19 07:56:17,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 07:56:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 13457 transitions. [2023-11-19 07:56:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-19 07:56:17,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:17,599 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:17,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:17,599 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 07:56:17,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1871697104, now seen corresponding path program 1 times [2023-11-19 07:56:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307985844] [2023-11-19 07:56:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:56:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:56:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:56:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:56:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:56:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:56:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:56:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:56:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:56:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:56:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:56:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:56:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-19 07:56:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-19 07:56:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-19 07:56:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2023-11-19 07:56:18,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:18,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307985844] [2023-11-19 07:56:18,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307985844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:18,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:18,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:18,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498506368] [2023-11-19 07:56:18,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:18,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:18,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:18,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:18,960 INFO L87 Difference]: Start difference. First operand 8830 states and 13457 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)