./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 489d9a5739ede9ff47191ae53f39497ac15f03954255dcbbc9f617764054618f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:45,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:45,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:28:45,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:45,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:45,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:45,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:45,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:45,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:45,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:45,995 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:45,996 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:45,996 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:45,998 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:45,999 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:46,000 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:46,001 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:46,001 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:46,002 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:46,003 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:46,003 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:46,004 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:46,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:46,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:46,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:46,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:46,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:46,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:46,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:46,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:46,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:46,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:46,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:46,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:46,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:46,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:46,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:46,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:46,021 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:46,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:46,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:46,022 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:46,023 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:46,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:46,023 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 489d9a5739ede9ff47191ae53f39497ac15f03954255dcbbc9f617764054618f [2023-11-23 21:28:46,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:46,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:46,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:46,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:46,396 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:46,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:28:49,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:50,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:50,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:28:50,429 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/data/139c28ca5/57bae92de37e4c6aaf56884a0892777e/FLAG312b3e21a [2023-11-23 21:28:50,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/data/139c28ca5/57bae92de37e4c6aaf56884a0892777e [2023-11-23 21:28:50,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:50,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:50,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:50,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:50,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:50,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:50" (1/1) ... [2023-11-23 21:28:50,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7498b50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:50, skipping insertion in model container [2023-11-23 21:28:50,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:50" (1/1) ... [2023-11-23 21:28:50,661 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:54,271 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-23 21:28:54,276 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-23 21:28:54,277 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-23 21:28:54,278 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-23 21:28:54,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:54,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:54,558 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"); [5259] [2023-11-23 21:28:54,561 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)); [5266] [2023-11-23 21:28:54,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2023-11-23 21:28:54,563 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/a068ef8/linux-usb-dev/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5314-5315] [2023-11-23 21:28:54,564 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"); [5320-5322] [2023-11-23 21:28:54,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5414] [2023-11-23 21:28:54,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5422] [2023-11-23 21:28:54,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5429] [2023-11-23 21:28:54,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5436] [2023-11-23 21:28:54,585 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)); [5555-5556] [2023-11-23 21:28:54,588 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)); [5589-5590] [2023-11-23 21:28:54,589 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)); [5626-5627] [2023-11-23 21:28:54,591 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)); [5663-5664] [2023-11-23 21:28:54,601 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)); [5921-5922] [2023-11-23 21:28:54,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5928] [2023-11-23 21:28:54,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8560] [2023-11-23 21:28:54,818 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8716] [2023-11-23 21:28:54,912 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/natsemi/natsemi.c"), "i" (3315), "i" (12UL)); [10270-10271] [2023-11-23 21:28:54,990 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-23 21:28:54,992 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-23 21:28:54,993 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-23 21:28:54,993 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_8f900846-08c2-4637-9681-e307eadb88be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-23 21:28:55,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:55,378 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:55,379 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:55,388 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:55,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55 WrapperNode [2023-11-23 21:28:55,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:55,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:55,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:55,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:55,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:55,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:55,953 INFO L138 Inliner]: procedures = 421, calls = 2457, calls flagged for inlining = 234, calls inlined = 213, statements flattened = 6543 [2023-11-23 21:28:55,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:55,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:55,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:55,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:55,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:55,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,423 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:56,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:56,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:56,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:56,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (1/1) ... [2023-11-23 21:28:56,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:56,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:56,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:56,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f900846-08c2-4637-9681-e307eadb88be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-23 21:28:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-23 21:28:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:28:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:28:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:28:56,632 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-23 21:28:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-23 21:28:56,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:28:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:28:56,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:28:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:28:56,633 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:28:56,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:28:56,633 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-23 21:28:56,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-23 21:28:56,633 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:28:56,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:28:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:28:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:28:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-23 21:28:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-23 21:28:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:28:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:28:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-23 21:28:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-23 21:28:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:28:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:28:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:28:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:28:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:28:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:28:56,636 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:28:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:28:56,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:28:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:28:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:28:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:28:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:28:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:28:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:28:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:28:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:28:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:28:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:28:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:28:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:28:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:28:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:28:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:28:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:28:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-23 21:28:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-23 21:28:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:28:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:28:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 21:28:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 21:28:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:28:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:28:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:28:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 21:28:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 21:28:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 21:28:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 21:28:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-23 21:28:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-23 21:28:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:28:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:28:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:28:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:28:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-23 21:28:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-23 21:28:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-23 21:28:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-23 21:28:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:28:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:28:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:28:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-23 21:28:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-23 21:28:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-23 21:28:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-23 21:28:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:28:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:28:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:28:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:28:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:28:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:28:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:28:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:28:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-23 21:28:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-23 21:28:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:28:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:28:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:28:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:28:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:28:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:28:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:28:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:28:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-23 21:28:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-23 21:28:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-23 21:28:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-23 21:28:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-23 21:28:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-23 21:28:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:28:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:28:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:28:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:28:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:28:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 21:28:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 21:28:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-23 21:28:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-23 21:28:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:28:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:28:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:28:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:28:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:28:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:28:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:28:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:28:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:28:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:28:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:28:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-23 21:28:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-23 21:28:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-23 21:28:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-23 21:28:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-23 21:28:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-23 21:28:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:28:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:28:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:28:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:28:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:28:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:28:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:28:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:28:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-23 21:28:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-23 21:28:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 21:28:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 21:28:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:28:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:28:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-23 21:28:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-23 21:28:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:28:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:28:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:28:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:28:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-23 21:28:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-23 21:28:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-23 21:28:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-23 21:28:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:28:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:28:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-23 21:28:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-23 21:28:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 21:28:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 21:28:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-23 21:28:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-23 21:28:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-23 21:28:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-23 21:28:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:28:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:28:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-23 21:28:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-23 21:28:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:28:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:28:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 21:28:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 21:28:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-23 21:28:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-23 21:28:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:28:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:28:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:28:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:28:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-23 21:28:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-23 21:28:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:28:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-23 21:28:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-23 21:28:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:28:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:28:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-23 21:28:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-23 21:28:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:28:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:28:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:28:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:28:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-23 21:28:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-23 21:28:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:28:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:28:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:28:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:28:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:28:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:28:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:28:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:28:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-23 21:28:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-23 21:28:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-23 21:28:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-23 21:28:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:28:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:28:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-23 21:28:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-23 21:28:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-23 21:28:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-23 21:28:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:28:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:28:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:28:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:28:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:28:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:28:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:28:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:28:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-23 21:28:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-23 21:28:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-23 21:28:56,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-23 21:28:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:28:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-23 21:28:56,676 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-23 21:28:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:28:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:28:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:28:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:28:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-23 21:28:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-23 21:28:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-23 21:28:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-23 21:28:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:28:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:28:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-23 21:28:56,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-23 21:28:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 21:28:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 21:28:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-23 21:28:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-23 21:28:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-23 21:28:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-23 21:28:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-23 21:28:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-23 21:28:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:28:56,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:28:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-23 21:28:56,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-23 21:28:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-23 21:28:56,680 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-23 21:28:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-23 21:28:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-23 21:28:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-23 21:28:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-23 21:28:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:28:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:28:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:28:56,687 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:28:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:28:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-23 21:28:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-23 21:28:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:28:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:28:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 21:28:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 21:28:57,681 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:57,689 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:58,430 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:29:03,872 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:29:04,081 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:09,868 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:09,868 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:29:09,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:09 BoogieIcfgContainer [2023-11-23 21:29:09,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:09,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:09,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:09,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:09,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:50" (1/3) ... [2023-11-23 21:29:09,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24461627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:09, skipping insertion in model container [2023-11-23 21:29:09,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:55" (2/3) ... [2023-11-23 21:29:09,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24461627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:09, skipping insertion in model container [2023-11-23 21:29:09,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:09" (3/3) ... [2023-11-23 21:29:09,883 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:29:09,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:09,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:29:10,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:10,069 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2eedc6cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:10,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:29:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 2035 states, 1134 states have (on average 1.2671957671957672) internal successors, (1437), 1170 states have internal predecessors, (1437), 774 states have call successors, (774), 126 states have call predecessors, (774), 125 states have return successors, (768), 759 states have call predecessors, (768), 768 states have call successors, (768) [2023-11-23 21:29:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-23 21:29:10,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:10,115 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:10,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:10,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash -494517098, now seen corresponding path program 1 times [2023-11-23 21:29:10,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:10,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162689402] [2023-11-23 21:29:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:10,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-23 21:29:11,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162689402] [2023-11-23 21:29:11,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162689402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:11,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:11,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:11,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409044011] [2023-11-23 21:29:11,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:11,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:11,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:11,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:11,542 INFO L87 Difference]: Start difference. First operand has 2035 states, 1134 states have (on average 1.2671957671957672) internal successors, (1437), 1170 states have internal predecessors, (1437), 774 states have call successors, (774), 126 states have call predecessors, (774), 125 states have return successors, (768), 759 states have call predecessors, (768), 768 states have call successors, (768) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 21:29:18,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:20,250 INFO L93 Difference]: Finished difference Result 5981 states and 8765 transitions. [2023-11-23 21:29:20,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:20,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2023-11-23 21:29:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:20,322 INFO L225 Difference]: With dead ends: 5981 [2023-11-23 21:29:20,323 INFO L226 Difference]: Without dead ends: 3967 [2023-11-23 21:29:20,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:20,347 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 2870 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:20,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 5157 Invalid, 788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 780 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2023-11-23 21:29:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2023-11-23 21:29:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3965. [2023-11-23 21:29:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 2216 states have (on average 1.263537906137184) internal successors, (2800), 2287 states have internal predecessors, (2800), 1500 states have call successors, (1500), 248 states have call predecessors, (1500), 247 states have return successors, (1497), 1479 states have call predecessors, (1497), 1497 states have call successors, (1497) [2023-11-23 21:29:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5797 transitions. [2023-11-23 21:29:20,834 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5797 transitions. Word has length 170 [2023-11-23 21:29:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:20,836 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5797 transitions. [2023-11-23 21:29:20,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 21:29:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5797 transitions. [2023-11-23 21:29:20,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-23 21:29:20,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:20,849 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:20,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:20,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:20,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2102143926, now seen corresponding path program 1 times [2023-11-23 21:29:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:20,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516678689] [2023-11-23 21:29:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-23 21:29:21,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:21,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516678689] [2023-11-23 21:29:21,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516678689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:21,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337800943] [2023-11-23 21:29:21,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:21,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:21,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:21,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:21,475 INFO L87 Difference]: Start difference. First operand 3965 states and 5797 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:29:26,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:28,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:30,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:30,895 INFO L93 Difference]: Finished difference Result 8752 states and 12764 transitions. [2023-11-23 21:29:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:30,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 187 [2023-11-23 21:29:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:30,942 INFO L225 Difference]: With dead ends: 8752 [2023-11-23 21:29:30,942 INFO L226 Difference]: Without dead ends: 4818 [2023-11-23 21:29:30,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:30,966 INFO L413 NwaCegarLoop]: 2575 mSDtfsCounter, 2026 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 5107 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:30,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 5107 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 820 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-11-23 21:29:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2023-11-23 21:29:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4811. [2023-11-23 21:29:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 2730 states have (on average 1.2644688644688644) internal successors, (3452), 2811 states have internal predecessors, (3452), 1764 states have call successors, (1764), 317 states have call predecessors, (1764), 315 states have return successors, (1761), 1739 states have call predecessors, (1761), 1761 states have call successors, (1761) [2023-11-23 21:29:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6977 transitions. [2023-11-23 21:29:31,357 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6977 transitions. Word has length 187 [2023-11-23 21:29:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:31,360 INFO L495 AbstractCegarLoop]: Abstraction has 4811 states and 6977 transitions. [2023-11-23 21:29:31,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:29:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6977 transitions. [2023-11-23 21:29:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-23 21:29:31,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:31,377 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:31,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:31,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:31,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1172561045, now seen corresponding path program 1 times [2023-11-23 21:29:31,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:31,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157218342] [2023-11-23 21:29:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:31,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2023-11-23 21:29:32,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157218342] [2023-11-23 21:29:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157218342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:32,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:32,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814565274] [2023-11-23 21:29:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:32,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:32,221 INFO L87 Difference]: Start difference. First operand 4811 states and 6977 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)