./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 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/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_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 489d9a5739ede9ff47191ae53f39497ac15f03954255dcbbc9f617764054618f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:19:17,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:19:17,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:19:17,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:19:17,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:19:17,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:19:17,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:19:17,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:19:17,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:19:17,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:19:17,989 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:19:17,989 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:19:17,990 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:19:17,990 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:19:17,991 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:19:17,991 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:19:17,992 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:19:17,993 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:19:17,993 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:19:17,994 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:19:17,995 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:19:17,996 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:19:17,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:19:17,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:19:17,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:19:17,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:19:17,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:19:18,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:19:18,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:19:18,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:19:18,001 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:19:18,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:19:18,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:19:18,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:18,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:19:18,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:19:18,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:19:18,003 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:19:18,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:19:18,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:19:18,017 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:19:18,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:19:18,017 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 489d9a5739ede9ff47191ae53f39497ac15f03954255dcbbc9f617764054618f [2023-11-19 05:19:18,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:19:18,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:19:18,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:19:18,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:19:18,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:19:18,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 05:19:21,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:19:22,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:19:22,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 05:19:22,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/data/098f78045/7734ef5d74ea4819ab5406f11398a511/FLAGa598f9893 [2023-11-19 05:19:22,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/data/098f78045/7734ef5d74ea4819ab5406f11398a511 [2023-11-19 05:19:22,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:19:22,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:19:22,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:22,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:19:22,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:19:22,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:22" (1/1) ... [2023-11-19 05:19:22,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae54b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:22, skipping insertion in model container [2023-11-19 05:19:22,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:22" (1/1) ... [2023-11-19 05:19:22,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:25,648 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-19 05:19:25,655 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-19 05:19:25,655 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-19 05:19:25,656 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-19 05:19:25,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:25,757 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:25,893 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] [2023-11-19 05:19:25,895 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] [2023-11-19 05:19:25,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2023-11-19 05:19:25,900 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] [2023-11-19 05:19:25,901 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] [2023-11-19 05:19:25,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5414] [2023-11-19 05:19:25,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5422] [2023-11-19 05:19:25,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5429] [2023-11-19 05:19:25,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5436] [2023-11-19 05:19:25,924 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] [2023-11-19 05:19:25,927 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] [2023-11-19 05:19:25,929 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] [2023-11-19 05:19:25,930 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] [2023-11-19 05:19:25,942 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] [2023-11-19 05:19:25,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5928] [2023-11-19 05:19:26,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8560] [2023-11-19 05:19:26,085 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] [2023-11-19 05:19:26,201 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] [2023-11-19 05:19:26,256 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-19 05:19:26,257 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-19 05:19:26,257 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-19 05:19:26,258 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_324ffb01-631c-43a8-a9ee-8b913d4917c9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-19 05:19:26,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:26,526 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:19:26,527 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:19:26,534 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:26,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26 WrapperNode [2023-11-19 05:19:26,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:26,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:26,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:26,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:26,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:26,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:26,934 INFO L138 Inliner]: procedures = 421, calls = 2457, calls flagged for inlining = 234, calls inlined = 213, statements flattened = 6543 [2023-11-19 05:19:26,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:26,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:26,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:26,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:26,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:26,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:26,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:26,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:27,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:27,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:27,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:27,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (1/1) ... [2023-11-19 05:19:27,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:27,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:27,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:27,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_324ffb01-631c-43a8-a9ee-8b913d4917c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-19 05:19:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-19 05:19:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 05:19:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 05:19:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 05:19:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-19 05:19:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-19 05:19:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:19:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:19:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:19:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:19:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:19:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:19:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-19 05:19:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-19 05:19:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:19:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:19:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:19:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:19:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-19 05:19:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-19 05:19:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:19:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:19:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-19 05:19:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-19 05:19:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 05:19:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 05:19:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:19:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:19:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 05:19:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 05:19:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 05:19:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 05:19:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:19:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:19:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:19:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:19:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:19:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:19:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:19:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:19:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:19:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:19:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:19:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:19:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:19:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:19:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:19:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:19:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:19:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-19 05:19:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-19 05:19:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:19:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:19:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 05:19:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 05:19:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:19:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 05:19:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 05:19:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-19 05:19:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-19 05:19:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 05:19:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 05:19:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-19 05:19:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-19 05:19:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:19:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:19:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:19:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:19:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-19 05:19:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-19 05:19:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-19 05:19:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-19 05:19:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:19:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:19:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:19:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 05:19:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 05:19:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-19 05:19:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-19 05:19:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:19:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:19:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:19:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:19:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 05:19:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 05:19:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:19:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:19:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-19 05:19:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-19 05:19:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:19:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:19:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:19:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:19:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:19:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:19:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:19:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:19:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-19 05:19:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-19 05:19:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-19 05:19:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-19 05:19:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-19 05:19:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-19 05:19:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:19:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:19:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:19:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:19:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:19:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 05:19:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 05:19:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-19 05:19:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-19 05:19:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:19:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:19:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:19:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:19:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:19:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:19:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:19:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 05:19:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 05:19:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 05:19:27,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 05:19:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-19 05:19:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-19 05:19:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-19 05:19:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-19 05:19:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-19 05:19:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-19 05:19:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:19:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:19:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:19:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:19:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:19:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:19:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:19:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:19:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-19 05:19:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-19 05:19:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 05:19:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 05:19:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:19:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:19:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-19 05:19:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-19 05:19:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:19:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:19:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:19:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:19:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-19 05:19:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-19 05:19:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-19 05:19:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-19 05:19:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 05:19:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 05:19:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-19 05:19:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-19 05:19:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 05:19:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 05:19:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-19 05:19:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-19 05:19:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-19 05:19:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-19 05:19:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:19:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:19:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-19 05:19:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-19 05:19:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:19:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:19:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 05:19:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 05:19:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-19 05:19:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-19 05:19:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:19:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:19:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:19:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:19:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-19 05:19:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-19 05:19:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:19:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-19 05:19:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-19 05:19:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:19:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:19:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-19 05:19:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-19 05:19:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:19:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:19:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:19:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:19:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-19 05:19:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-19 05:19:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 05:19:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 05:19:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:19:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:19:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:19:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:19:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 05:19:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 05:19:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-19 05:19:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-19 05:19:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-19 05:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-19 05:19:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 05:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 05:19:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-19 05:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-19 05:19:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-19 05:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-19 05:19:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:19:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:19:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 05:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 05:19:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:19:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-19 05:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-19 05:19:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-19 05:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-19 05:19:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:19:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-19 05:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-19 05:19:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 05:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 05:19:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:19:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-19 05:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-19 05:19:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-19 05:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-19 05:19:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 05:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 05:19:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 05:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 05:19:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 05:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 05:19:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-19 05:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-19 05:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-19 05:19:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-19 05:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-19 05:19:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-19 05:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:19:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-19 05:19:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-19 05:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 05:19:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 05:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-19 05:19:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-19 05:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-19 05:19:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-19 05:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:19:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:19:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:19:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:19:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:19:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-19 05:19:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-19 05:19:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:19:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:19:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 05:19:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 05:19:28,673 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:28,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:29,413 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:19:34,508 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:19:34,718 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:40,412 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:40,412 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:19:40,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:40 BoogieIcfgContainer [2023-11-19 05:19:40,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:40,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:40,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:40,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:40,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:22" (1/3) ... [2023-11-19 05:19:40,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5adda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:40, skipping insertion in model container [2023-11-19 05:19:40,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:26" (2/3) ... [2023-11-19 05:19:40,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5adda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:40, skipping insertion in model container [2023-11-19 05:19:40,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:40" (3/3) ... [2023-11-19 05:19:40,449 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 05:19:40,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:40,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:19:40,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:40,600 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;@1710747a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:40,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 05:19:40,617 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) [2023-11-19 05:19:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 05:19:40,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:40,661 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] [2023-11-19 05:19:40,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:40,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1492193191, now seen corresponding path program 1 times [2023-11-19 05:19:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:40,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671436224] [2023-11-19 05:19:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 05:19:41,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:41,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671436224] [2023-11-19 05:19:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671436224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:41,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78319276] [2023-11-19 05:19:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:41,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:41,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:41,794 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) [2023-11-19 05:19:46,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:47,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:48,381 INFO L93 Difference]: Finished difference Result 5981 states and 8765 transitions. [2023-11-19 05:19:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:48,389 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 [2023-11-19 05:19:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:48,467 INFO L225 Difference]: With dead ends: 5981 [2023-11-19 05:19:48,468 INFO L226 Difference]: Without dead ends: 3967 [2023-11-19 05:19:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:48,496 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 2870 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:48,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 5157 Invalid, 787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-19 05:19:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2023-11-19 05:19:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3965. [2023-11-19 05:19:49,111 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) [2023-11-19 05:19:49,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5797 transitions. [2023-11-19 05:19:49,169 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5797 transitions. Word has length 170 [2023-11-19 05:19:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:49,174 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5797 transitions. [2023-11-19 05:19:49,175 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) [2023-11-19 05:19:49,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5797 transitions. [2023-11-19 05:19:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-19 05:19:49,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:49,193 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] [2023-11-19 05:19:49,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:19:49,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:49,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash -454119650, now seen corresponding path program 1 times [2023-11-19 05:19:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:49,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825091322] [2023-11-19 05:19:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 05:19:49,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825091322] [2023-11-19 05:19:49,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825091322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:49,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:49,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:49,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071736694] [2023-11-19 05:19:49,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:49,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:49,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:49,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:49,823 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) [2023-11-19 05:19:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:54,851 INFO L93 Difference]: Finished difference Result 8752 states and 12764 transitions. [2023-11-19 05:19:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:54,852 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 [2023-11-19 05:19:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:54,899 INFO L225 Difference]: With dead ends: 8752 [2023-11-19 05:19:54,899 INFO L226 Difference]: Without dead ends: 4818 [2023-11-19 05:19:54,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:54,924 INFO L413 NwaCegarLoop]: 2575 mSDtfsCounter, 2026 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 5107 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:54,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 5107 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 05:19:54,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2023-11-19 05:19:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4811. [2023-11-19 05:19:55,333 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) [2023-11-19 05:19:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6977 transitions. [2023-11-19 05:19:55,381 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6977 transitions. Word has length 187 [2023-11-19 05:19:55,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:55,383 INFO L495 AbstractCegarLoop]: Abstraction has 4811 states and 6977 transitions. [2023-11-19 05:19:55,383 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) [2023-11-19 05:19:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6977 transitions. [2023-11-19 05:19:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-19 05:19:55,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:55,396 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] [2023-11-19 05:19:55,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:19:55,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:55,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash -481450090, now seen corresponding path program 1 times [2023-11-19 05:19:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:55,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30381278] [2023-11-19 05:19:55,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:55,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2023-11-19 05:19:56,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:56,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30381278] [2023-11-19 05:19:56,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30381278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:56,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:56,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:19:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179388499] [2023-11-19 05:19:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:19:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:19:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:19:56,312 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) [2023-11-19 05:20:00,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:20:00,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:20:00,911 INFO L93 Difference]: Finished difference Result 4811 states and 6977 transitions. [2023-11-19 05:20:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:20:00,912 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 216 [2023-11-19 05:20:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:20:00,958 INFO L225 Difference]: With dead ends: 4811 [2023-11-19 05:20:00,958 INFO L226 Difference]: Without dead ends: 4788 [2023-11-19 05:20:00,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:20:00,965 INFO L413 NwaCegarLoop]: 2571 mSDtfsCounter, 2894 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:20:00,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 5142 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 05:20:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2023-11-19 05:20:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4788. [2023-11-19 05:20:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4788 states, 2724 states have (on average 1.262848751835536) internal successors, (3440), 2799 states have internal predecessors, (3440), 1749 states have call successors, (1749), 314 states have call predecessors, (1749), 314 states have return successors, (1749), 1731 states have call predecessors, (1749), 1749 states have call successors, (1749) [2023-11-19 05:20:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 6938 transitions. [2023-11-19 05:20:01,393 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 6938 transitions. Word has length 216 [2023-11-19 05:20:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:20:01,395 INFO L495 AbstractCegarLoop]: Abstraction has 4788 states and 6938 transitions. [2023-11-19 05:20:01,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-19 05:20:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 6938 transitions. [2023-11-19 05:20:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-19 05:20:01,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:20:01,416 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:20:01,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:20:01,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:20:01,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:20:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash 252553042, now seen corresponding path program 1 times [2023-11-19 05:20:01,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:20:01,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603126383] [2023-11-19 05:20:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:01,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:20:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:20:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2023-11-19 05:20:01,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:20:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603126383] [2023-11-19 05:20:01,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603126383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:20:01,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:20:01,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:20:01,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799330890] [2023-11-19 05:20:01,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:20:01,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:20:01,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:20:01,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:20:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:20:01,990 INFO L87 Difference]: Start difference. First operand 4788 states and 6938 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28)