./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/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 28669211a2ef49b5efd7443ec92409c5f49218a96d1252c934deb7757bde86cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:13:56,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:13:56,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:13:56,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:13:56,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:13:56,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:13:56,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:13:56,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:13:56,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:13:56,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:13:56,713 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:13:56,714 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:13:56,715 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:13:56,717 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:13:56,717 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:13:56,718 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:13:56,718 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:13:56,719 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:13:56,719 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:13:56,720 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:13:56,720 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:13:56,721 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:13:56,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:13:56,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:13:56,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:13:56,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:13:56,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:13:56,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:13:56,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:13:56,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:13:56,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:13:56,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:13:56,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:13:56,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:13:56,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:56,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:13:56,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:13:56,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:13:56,730 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:13:56,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:13:56,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:13:56,731 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:13:56,731 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:13:56,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:13:56,732 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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28669211a2ef49b5efd7443ec92409c5f49218a96d1252c934deb7757bde86cd [2023-11-23 21:13:57,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:13:57,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:13:57,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:13:57,062 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:13:57,062 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:13:57,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:14:00,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:01,120 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:01,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:14:01,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/data/f46794c5b/e4e11c81598c41b0a5ab85a08432456b/FLAGc0b18de14 [2023-11-23 21:14:01,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/data/f46794c5b/e4e11c81598c41b0a5ab85a08432456b [2023-11-23 21:14:01,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:01,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:01,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:01,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:01,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:01,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:01" (1/1) ... [2023-11-23 21:14:01,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20adcf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:01, skipping insertion in model container [2023-11-23 21:14:01,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:01" (1/1) ... [2023-11-23 21:14:01,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:05,345 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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387086,387099] [2023-11-23 21:14:05,356 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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387231,387244] [2023-11-23 21:14:05,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:05,458 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:05,650 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"); [5254] [2023-11-23 21:14:05,652 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)); [5261] [2023-11-23 21:14:05,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5268] [2023-11-23 21:14:05,655 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/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5309-5310] [2023-11-23 21:14:05,656 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"); [5315-5317] [2023-11-23 21:14:05,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5463] [2023-11-23 21:14:05,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5471] [2023-11-23 21:14:05,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5478] [2023-11-23 21:14:05,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5485] [2023-11-23 21:14:05,667 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)); [5589-5590] [2023-11-23 21:14:05,669 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)); [5623-5624] [2023-11-23 21:14:05,671 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)); [5660-5661] [2023-11-23 21:14:05,672 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)); [5697-5698] [2023-11-23 21:14:05,680 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)); [5957-5958] [2023-11-23 21:14:05,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5964] [2023-11-23 21:14:05,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8592] [2023-11-23 21:14:05,805 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8748] [2023-11-23 21:14:05,867 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)); [10300-10301] [2023-11-23 21:14:05,951 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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387086,387099] [2023-11-23 21:14:05,952 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_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387231,387244] [2023-11-23 21:14:05,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:06,381 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:06,382 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:06,391 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:06,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06 WrapperNode [2023-11-23 21:14:06,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:06,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:06,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:06,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:06,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:06,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:06,859 INFO L138 Inliner]: procedures = 510, calls = 2700, calls flagged for inlining = 247, calls inlined = 217, statements flattened = 6624 [2023-11-23 21:14:06,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:06,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:06,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:06,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:06,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:06,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:06,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:06,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:07,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:07,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:07,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:07,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (1/1) ... [2023-11-23 21:14:07,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:07,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:07,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddbfb7c-1fc2-4875-b8df-e8cbfbe01c89/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-23 21:14:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-23 21:14:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:14:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:14:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:14:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-23 21:14:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-23 21:14:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:14:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:14:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:14:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:14:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:14:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:14:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-23 21:14:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-23 21:14:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2023-11-23 21:14:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2023-11-23 21:14:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:14:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:14:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:14:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:14:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-23 21:14:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-23 21:14:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_92 [2023-11-23 21:14:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_92 [2023-11-23 21:14:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:14:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:14:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-23 21:14:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-23 21:14:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:14:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:14:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:14:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:14:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:14:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:14:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:14:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:14:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:14:07,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:14:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:14:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:14:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:14:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:14:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:14:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:14:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:14:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:14:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:14:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:14:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:14:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-23 21:14:07,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-23 21:14:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:14:07,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:14:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 21:14:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 21:14:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:14:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:14:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 21:14:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 21:14:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2023-11-23 21:14:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2023-11-23 21:14:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 21:14:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 21:14:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-23 21:14:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-23 21:14:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:14:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:14:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-23 21:14:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-23 21:14:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-23 21:14:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-23 21:14:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:14:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:14:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:14:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-23 21:14:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-23 21:14:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-23 21:14:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-23 21:14:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:14:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:14:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:14:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:14:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:14:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:14:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:14:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-23 21:14:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-23 21:14:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-23 21:14:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-23 21:14:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:14:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:14:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:14:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:14:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:14:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:14:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:14:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:14:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-23 21:14:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-23 21:14:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-23 21:14:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-23 21:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-23 21:14:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-23 21:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:14:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:14:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:14:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 21:14:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 21:14:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-23 21:14:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-23 21:14:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:14:07,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:14:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:14:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:14:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:14:07,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:14:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:14:07,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:14:07,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 21:14:07,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 21:14:07,565 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:14:07,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:14:07,566 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-23 21:14:07,567 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-23 21:14:07,567 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:14:07,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:14:07,573 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-23 21:14:07,573 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-23 21:14:07,573 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-23 21:14:07,573 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-23 21:14:07,574 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:14:07,574 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:14:07,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:14:07,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:14:07,574 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:14:07,574 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:14:07,574 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:14:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:14:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-23 21:14:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-23 21:14:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 21:14:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 21:14:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:14:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:14:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-23 21:14:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-23 21:14:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:14:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:14:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:14:07,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:14:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-23 21:14:07,577 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-23 21:14:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-23 21:14:07,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-23 21:14:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:14:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:14:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-23 21:14:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-23 21:14:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 21:14:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 21:14:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-23 21:14:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-23 21:14:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-23 21:14:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-23 21:14:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:14:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:14:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-23 21:14:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-23 21:14:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-23 21:14:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-23 21:14:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_91 [2023-11-23 21:14:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_91 [2023-11-23 21:14:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:14:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:14:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 21:14:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 21:14:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-23 21:14:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-23 21:14:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:14:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:14:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:14:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:14:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-23 21:14:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-23 21:14:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-23 21:14:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-23 21:14:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:14:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:14:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-23 21:14:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-23 21:14:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:14:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:14:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-23 21:14:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-23 21:14:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:14:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:14:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-23 21:14:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-23 21:14:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:14:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:14:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:14:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:14:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-23 21:14:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-23 21:14:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-23 21:14:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-23 21:14:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:14:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:14:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-23 21:14:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-23 21:14:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-23 21:14:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-23 21:14:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:14:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:14:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:14:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:14:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:14:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:14:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:14:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:14:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-23 21:14:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-23 21:14:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-23 21:14:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-23 21:14:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-23 21:14:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-23 21:14:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:14:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:14:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-23 21:14:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-23 21:14:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-23 21:14:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-23 21:14:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:14:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:14:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-23 21:14:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-23 21:14:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 21:14:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 21:14:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-23 21:14:07,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-23 21:14:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-23 21:14:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-23 21:14:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-23 21:14:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-23 21:14:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:14:07,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:14:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-23 21:14:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-23 21:14:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-23 21:14:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-23 21:14:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-23 21:14:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-23 21:14:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-23 21:14:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-23 21:14:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:14:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:14:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-23 21:14:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-23 21:14:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:14:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:14:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 21:14:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 21:14:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2023-11-23 21:14:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2023-11-23 21:14:08,629 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:08,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:09,418 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:14:14,639 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:14:14,858 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:20,181 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:20,181 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:14:20,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:20 BoogieIcfgContainer [2023-11-23 21:14:20,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:20,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:20,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:20,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:20,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:01" (1/3) ... [2023-11-23 21:14:20,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b72c1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:20, skipping insertion in model container [2023-11-23 21:14:20,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:06" (2/3) ... [2023-11-23 21:14:20,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b72c1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:20, skipping insertion in model container [2023-11-23 21:14:20,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:20" (3/3) ... [2023-11-23 21:14:20,196 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-23 21:14:20,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:20,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:20,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:20,358 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;@66a3fb34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:20,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:20,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 2066 states, 1138 states have (on average 1.2636203866432338) internal successors, (1438), 1173 states have internal predecessors, (1438), 797 states have call successors, (797), 131 states have call predecessors, (797), 130 states have return successors, (791), 782 states have call predecessors, (791), 791 states have call successors, (791) [2023-11-23 21:14:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-23 21:14:20,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:20,426 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2023-11-23 21:14:20,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:20,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1849114223, now seen corresponding path program 1 times [2023-11-23 21:14:20,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:20,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687019443] [2023-11-23 21:14:20,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:20,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-11-23 21:14:21,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687019443] [2023-11-23 21:14:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687019443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597382895] [2023-11-23 21:14:21,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:21,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:21,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:21,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:21,525 INFO L87 Difference]: Start difference. First operand has 2066 states, 1138 states have (on average 1.2636203866432338) internal successors, (1438), 1173 states have internal predecessors, (1438), 797 states have call successors, (797), 131 states have call predecessors, (797), 130 states have return successors, (791), 782 states have call predecessors, (791), 791 states have call successors, (791) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 21:14:27,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:29,385 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 21:14:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:29,771 INFO L93 Difference]: Finished difference Result 5707 states and 8368 transitions. [2023-11-23 21:14:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:14:29,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 194 [2023-11-23 21:14:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:29,836 INFO L225 Difference]: With dead ends: 5707 [2023-11-23 21:14:29,836 INFO L226 Difference]: Without dead ends: 3610 [2023-11-23 21:14:29,854 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 21:14:29,857 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 2337 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 5226 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:29,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2337 Valid, 5226 Invalid, 822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 813 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2023-11-23 21:14:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2023-11-23 21:14:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3606. [2023-11-23 21:14:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 1985 states have (on average 1.247858942065491) internal successors, (2477), 2049 states have internal predecessors, (2477), 1376 states have call successors, (1376), 246 states have call predecessors, (1376), 244 states have return successors, (1377), 1354 states have call predecessors, (1377), 1376 states have call successors, (1377) [2023-11-23 21:14:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 5230 transitions. [2023-11-23 21:14:30,293 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 5230 transitions. Word has length 194 [2023-11-23 21:14:30,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:30,299 INFO L495 AbstractCegarLoop]: Abstraction has 3606 states and 5230 transitions. [2023-11-23 21:14:30,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 21:14:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 5230 transitions. [2023-11-23 21:14:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-23 21:14:30,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:30,316 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:30,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:14:30,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:30,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1830002515, now seen corresponding path program 1 times [2023-11-23 21:14:30,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:30,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147377333] [2023-11-23 21:14:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:30,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2023-11-23 21:14:30,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:30,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147377333] [2023-11-23 21:14:30,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147377333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:30,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230993071] [2023-11-23 21:14:30,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:31,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:31,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:31,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:31,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:31,002 INFO L87 Difference]: Start difference. First operand 3606 states and 5230 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-23 21:14:34,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:39,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:39,220 INFO L93 Difference]: Finished difference Result 10390 states and 15030 transitions. [2023-11-23 21:14:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:14:39,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 255 [2023-11-23 21:14:39,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:39,298 INFO L225 Difference]: With dead ends: 10390 [2023-11-23 21:14:39,298 INFO L226 Difference]: Without dead ends: 6815 [2023-11-23 21:14:39,324 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 21:14:39,325 INFO L413 NwaCegarLoop]: 2590 mSDtfsCounter, 2804 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 5005 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:39,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 5005 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 763 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-11-23 21:14:39,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2023-11-23 21:14:39,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6809. [2023-11-23 21:14:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6809 states, 3790 states have (on average 1.2506596306068603) internal successors, (4740), 3908 states have internal predecessors, (4740), 2545 states have call successors, (2545), 483 states have call predecessors, (2545), 473 states have return successors, (2554), 2493 states have call predecessors, (2554), 2545 states have call successors, (2554) [2023-11-23 21:14:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6809 states to 6809 states and 9839 transitions. [2023-11-23 21:14:40,023 INFO L78 Accepts]: Start accepts. Automaton has 6809 states and 9839 transitions. Word has length 255 [2023-11-23 21:14:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:40,025 INFO L495 AbstractCegarLoop]: Abstraction has 6809 states and 9839 transitions. [2023-11-23 21:14:40,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-23 21:14:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6809 states and 9839 transitions. [2023-11-23 21:14:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-11-23 21:14:40,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:40,040 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 9, 6, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:40,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:14:40,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:40,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1097043108, now seen corresponding path program 1 times [2023-11-23 21:14:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:40,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001158867] [2023-11-23 21:14:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2023-11-23 21:14:40,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:40,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001158867] [2023-11-23 21:14:40,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001158867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:40,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:40,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141486592] [2023-11-23 21:14:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:40,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:40,861 INFO L87 Difference]: Start difference. First operand 6809 states and 9839 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46)