./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/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 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:05,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:05,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:59:05,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:05,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:05,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:05,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:05,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:05,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:05,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:05,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:05,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:05,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:05,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:05,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:05,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:05,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:05,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:05,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:05,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:05,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:05,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:05,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:05,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:05,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:05,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:05,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:05,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:05,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:05,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:05,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:05,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:05,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:05,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:05,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:05,221 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:05,221 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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2023-11-19 07:59:05,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:05,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:05,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:05,586 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:05,587 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:05,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2023-11-19 07:59:08,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:09,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:09,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2023-11-19 07:59:09,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/data/2518ac9f9/d6ef7ffe58384ae1b793524b5eaf3114/FLAG110478885 [2023-11-19 07:59:09,926 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/data/2518ac9f9/d6ef7ffe58384ae1b793524b5eaf3114 [2023-11-19 07:59:09,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:09,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:09,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:09,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:09,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:09,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:09" (1/1) ... [2023-11-19 07:59:09,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2159e7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:09, skipping insertion in model container [2023-11-19 07:59:09,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:09" (1/1) ... [2023-11-19 07:59:10,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:15,202 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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2023-11-19 07:59:15,218 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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2023-11-19 07:59:15,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:15,359 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:15,511 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"); [5398] [2023-11-19 07:59:15,514 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)); [5405] [2023-11-19 07:59:15,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5412] [2023-11-19 07:59:15,518 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5457-5458] [2023-11-19 07:59:15,518 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"); [5463-5465] [2023-11-19 07:59:15,520 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5490-5491] [2023-11-19 07:59:15,520 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5496-5498] [2023-11-19 07:59:15,522 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5522-5523] [2023-11-19 07:59:15,522 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5528-5530] [2023-11-19 07:59:15,536 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)); [5797-5798] [2023-11-19 07:59:15,538 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)); [5831-5832] [2023-11-19 07:59:15,543 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)); [5868-5869] [2023-11-19 07:59:15,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5905-5906] [2023-11-19 07:59:15,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/3com/3c59x.c"), "i" (3233), "i" (12UL)); [11557-11558] [2023-11-19 07:59:16,014 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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2023-11-19 07:59:16,015 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_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2023-11-19 07:59:16,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:16,442 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:16,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16 WrapperNode [2023-11-19 07:59:16,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:16,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:16,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:16,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:16,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,047 INFO L138 Inliner]: procedures = 548, calls = 4531, calls flagged for inlining = 251, calls inlined = 230, statements flattened = 9827 [2023-11-19 07:59:17,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:17,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:17,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:17,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:17,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:17,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:17,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:17,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:17,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:17,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:17,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:17,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:17,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de9e61-f03d-4b8f-8fe3-0111b32628b1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_122 [2023-11-19 07:59:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_122 [2023-11-19 07:59:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 07:59:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 07:59:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:59:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:59:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 07:59:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 07:59:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-19 07:59:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-19 07:59:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2023-11-19 07:59:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2023-11-19 07:59:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 07:59:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 07:59:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2023-11-19 07:59:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2023-11-19 07:59:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_107 [2023-11-19 07:59:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_107 [2023-11-19 07:59:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:59:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:59:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:59:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:59:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2023-11-19 07:59:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2023-11-19 07:59:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2023-11-19 07:59:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2023-11-19 07:59:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-19 07:59:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-19 07:59:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2023-11-19 07:59:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2023-11-19 07:59:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 07:59:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 07:59:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 07:59:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 07:59:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 07:59:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 07:59:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2023-11-19 07:59:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2023-11-19 07:59:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 07:59:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 07:59:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 07:59:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 07:59:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2023-11-19 07:59:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2023-11-19 07:59:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:59:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:59:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2023-11-19 07:59:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2023-11-19 07:59:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2023-11-19 07:59:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2023-11-19 07:59:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2023-11-19 07:59:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2023-11-19 07:59:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 07:59:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 07:59:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 07:59:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 07:59:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 07:59:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 07:59:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 07:59:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 07:59:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 07:59:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 07:59:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 07:59:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 07:59:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 07:59:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 07:59:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:59:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:59:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-19 07:59:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-19 07:59:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:59:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:59:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2023-11-19 07:59:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2023-11-19 07:59:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 07:59:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 07:59:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:59:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2023-11-19 07:59:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2023-11-19 07:59:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 07:59:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 07:59:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 07:59:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 07:59:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2023-11-19 07:59:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2023-11-19 07:59:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:59:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:59:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2023-11-19 07:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2023-11-19 07:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2023-11-19 07:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2023-11-19 07:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2023-11-19 07:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2023-11-19 07:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2023-11-19 07:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2023-11-19 07:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 07:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 07:59:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 07:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 07:59:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:59:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:59:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2023-11-19 07:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2023-11-19 07:59:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 07:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 07:59:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:59:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2023-11-19 07:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2023-11-19 07:59:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 07:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 07:59:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 07:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 07:59:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:59:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 07:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 07:59:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 07:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 07:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 07:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 07:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 07:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 07:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2023-11-19 07:59:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2023-11-19 07:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2023-11-19 07:59:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2023-11-19 07:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-19 07:59:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-19 07:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 07:59:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 07:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2023-11-19 07:59:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2023-11-19 07:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 07:59:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 07:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2023-11-19 07:59:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2023-11-19 07:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-19 07:59:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-19 07:59:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 07:59:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 07:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:59:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:59:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:59:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:59:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:59:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 07:59:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 07:59:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:59:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:59:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:59:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:59:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:59:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:59:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 07:59:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 07:59:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 07:59:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 07:59:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2023-11-19 07:59:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2023-11-19 07:59:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 07:59:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 07:59:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2023-11-19 07:59:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2023-11-19 07:59:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 07:59:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 07:59:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 07:59:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 07:59:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2023-11-19 07:59:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2023-11-19 07:59:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 07:59:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 07:59:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2023-11-19 07:59:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2023-11-19 07:59:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:59:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:59:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 07:59:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 07:59:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2023-11-19 07:59:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2023-11-19 07:59:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 07:59:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 07:59:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2023-11-19 07:59:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2023-11-19 07:59:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2023-11-19 07:59:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2023-11-19 07:59:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-19 07:59:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-19 07:59:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 07:59:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 07:59:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2023-11-19 07:59:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2023-11-19 07:59:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-19 07:59:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-19 07:59:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2023-11-19 07:59:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2023-11-19 07:59:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2023-11-19 07:59:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2023-11-19 07:59:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 07:59:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 07:59:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2023-11-19 07:59:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:59:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 07:59:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 07:59:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-19 07:59:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-19 07:59:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 07:59:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 07:59:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 07:59:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 07:59:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-19 07:59:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-19 07:59:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 07:59:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 07:59:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-19 07:59:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2023-11-19 07:59:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-19 07:59:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 07:59:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:59:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2023-11-19 07:59:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2023-11-19 07:59:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2023-11-19 07:59:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2023-11-19 07:59:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:59:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:59:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:59:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:59:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:59:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2023-11-19 07:59:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2023-11-19 07:59:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-19 07:59:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-19 07:59:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 07:59:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 07:59:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 07:59:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 07:59:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 07:59:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 07:59:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 07:59:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 07:59:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-19 07:59:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-19 07:59:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2023-11-19 07:59:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2023-11-19 07:59:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2023-11-19 07:59:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2023-11-19 07:59:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 07:59:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 07:59:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2023-11-19 07:59:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2023-11-19 07:59:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2023-11-19 07:59:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2023-11-19 07:59:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 07:59:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 07:59:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 07:59:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 07:59:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 07:59:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 07:59:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2023-11-19 07:59:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2023-11-19 07:59:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:59:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:59:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2023-11-19 07:59:17,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2023-11-19 07:59:17,814 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2023-11-19 07:59:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:59:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2023-11-19 07:59:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 07:59:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:59:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:59:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:59:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:59:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2023-11-19 07:59:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2023-11-19 07:59:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2023-11-19 07:59:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2023-11-19 07:59:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2023-11-19 07:59:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2023-11-19 07:59:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 07:59:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 07:59:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2023-11-19 07:59:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2023-11-19 07:59:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 07:59:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 07:59:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2023-11-19 07:59:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2023-11-19 07:59:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2023-11-19 07:59:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2023-11-19 07:59:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 07:59:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 07:59:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 07:59:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 07:59:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2023-11-19 07:59:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:59:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:59:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2023-11-19 07:59:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2023-11-19 07:59:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2023-11-19 07:59:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2023-11-19 07:59:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 07:59:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 07:59:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 07:59:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 07:59:18,944 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:18,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:21,404 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:59:28,965 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:28,997 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:28,997 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:59:29,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:29 BoogieIcfgContainer [2023-11-19 07:59:29,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:29,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:29,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:29,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:29,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:09" (1/3) ... [2023-11-19 07:59:29,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca37288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:29, skipping insertion in model container [2023-11-19 07:59:29,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16" (2/3) ... [2023-11-19 07:59:29,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca37288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:29, skipping insertion in model container [2023-11-19 07:59:29,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:29" (3/3) ... [2023-11-19 07:59:29,024 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2023-11-19 07:59:29,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:29,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:29,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:29,187 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;@312f5603, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:29,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:29,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 3326 states, 2318 states have (on average 1.3930112165660051) internal successors, (3229), 2404 states have internal predecessors, (3229), 851 states have call successors, (851), 156 states have call predecessors, (851), 155 states have return successors, (844), 826 states have call predecessors, (844), 844 states have call successors, (844) [2023-11-19 07:59:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:59:29,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:29,267 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:29,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:29,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1574966824, now seen corresponding path program 1 times [2023-11-19 07:59:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969921173] [2023-11-19 07:59:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:29,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:59:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:59:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:59:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:59:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:59:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:59:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:59:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:59:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:59:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:59:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:59:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:59:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-19 07:59:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:59:31,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:31,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969921173] [2023-11-19 07:59:31,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969921173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:31,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:31,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161785482] [2023-11-19 07:59:31,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:31,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:31,550 INFO L87 Difference]: Start difference. First operand has 3326 states, 2318 states have (on average 1.3930112165660051) internal successors, (3229), 2404 states have internal predecessors, (3229), 851 states have call successors, (851), 156 states have call predecessors, (851), 155 states have return successors, (844), 826 states have call predecessors, (844), 844 states have call successors, (844) Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:59:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:39,018 INFO L93 Difference]: Finished difference Result 6658 states and 9993 transitions. [2023-11-19 07:59:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:39,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2023-11-19 07:59:39,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:39,093 INFO L225 Difference]: With dead ends: 6658 [2023-11-19 07:59:39,093 INFO L226 Difference]: Without dead ends: 3301 [2023-11-19 07:59:39,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:39,148 INFO L413 NwaCegarLoop]: 3743 mSDtfsCounter, 4652 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 4168 mSolverCounterSat, 1560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 8684 SdHoareTripleChecker+Invalid, 5728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1560 IncrementalHoareTripleChecker+Valid, 4168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:39,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 8684 Invalid, 5728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1560 Valid, 4168 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-19 07:59:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2023-11-19 07:59:39,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 3266. [2023-11-19 07:59:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 2291 states have (on average 1.3793103448275863) internal successors, (3160), 2371 states have internal predecessors, (3160), 820 states have call successors, (820), 154 states have call predecessors, (820), 154 states have return successors, (820), 802 states have call predecessors, (820), 820 states have call successors, (820) [2023-11-19 07:59:39,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4800 transitions. [2023-11-19 07:59:39,614 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4800 transitions. Word has length 153 [2023-11-19 07:59:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:39,616 INFO L495 AbstractCegarLoop]: Abstraction has 3266 states and 4800 transitions. [2023-11-19 07:59:39,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:59:39,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4800 transitions. [2023-11-19 07:59:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-19 07:59:39,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:39,628 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:39,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:39,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:39,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1600321634, now seen corresponding path program 1 times [2023-11-19 07:59:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:39,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051183943] [2023-11-19 07:59:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:39,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:59:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:59:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:59:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:59:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:59:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:59:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:59:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:59:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:59:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:59:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:59:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:59:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:59:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-19 07:59:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:59:41,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:41,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051183943] [2023-11-19 07:59:41,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051183943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:41,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:41,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:59:41,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353115740] [2023-11-19 07:59:41,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:41,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:41,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:41,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:41,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:41,247 INFO L87 Difference]: Start difference. First operand 3266 states and 4800 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18)