./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 0e0057cc 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_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/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_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:50:02,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:02,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:50:02,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:02,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:02,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:02,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:02,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:02,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:02,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:02,803 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:02,803 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:02,804 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:02,805 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:50:02,806 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:02,806 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:02,807 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:50:02,807 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:50:02,808 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:02,809 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:50:02,810 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:50:02,811 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:50:02,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:02,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:02,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:50:02,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:02,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:02,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:02,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:02,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:02,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:02,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:02,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:50:02,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:02,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:02,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:02,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:02,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:02,820 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:50:02,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:50:02,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:02,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:02,821 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:02,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:02,822 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_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 489d9a5739ede9ff47191ae53f39497ac15f03954255dcbbc9f617764054618f [2023-11-24 23:50:03,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:03,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:03,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:03,194 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:03,195 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:03,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:50:06,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:07,112 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:07,113 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:50:07,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/data/1379d1838/a35c615605c842bca6138676f6094fbd/FLAGb82d8813f [2023-11-24 23:50:07,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/data/1379d1838/a35c615605c842bca6138676f6094fbd [2023-11-24 23:50:07,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:07,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:07,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:07,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:07,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:07,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:07" (1/1) ... [2023-11-24 23:50:07,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0048a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:07, skipping insertion in model container [2023-11-24 23:50:07,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:07" (1/1) ... [2023-11-24 23:50:07,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:50:11,618 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-24 23:50:11,623 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-24 23:50:11,624 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-24 23:50:11,624 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-24 23:50:11,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:11,705 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:50:11,832 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] [2023-11-24 23:50:11,834 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] [2023-11-24 23:50:11,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2023-11-24 23:50:11,837 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] [2023-11-24 23:50:11,838 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] [2023-11-24 23:50:11,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5414] [2023-11-24 23:50:11,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5422] [2023-11-24 23:50:11,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5429] [2023-11-24 23:50:11,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5436] [2023-11-24 23:50:11,855 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] [2023-11-24 23:50:11,858 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] [2023-11-24 23:50:11,859 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] [2023-11-24 23:50:11,861 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] [2023-11-24 23:50:11,869 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] [2023-11-24 23:50:11,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5928] [2023-11-24 23:50:12,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8560] [2023-11-24 23:50:12,050 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] [2023-11-24 23:50:12,111 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] [2023-11-24 23:50:12,164 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353302,353315] [2023-11-24 23:50:12,165 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353449,353462] [2023-11-24 23:50:12,166 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353588,353601] [2023-11-24 23:50:12,166 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_1febf107-bdde-4957-aa95-04234a73ab3c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i[353746,353759] [2023-11-24 23:50:12,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:12,479 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:12,479 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:12,487 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:50:12,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12 WrapperNode [2023-11-24 23:50:12,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:12,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:12,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:50:12,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:50:12,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:12,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:12,883 INFO L138 Inliner]: procedures = 421, calls = 2457, calls flagged for inlining = 234, calls inlined = 213, statements flattened = 6605 [2023-11-24 23:50:12,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:12,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:50:12,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:50:12,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:50:12,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:12,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:12,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:12,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:50:13,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:50:13,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:50:13,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:50:13,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (1/1) ... [2023-11-24 23:50:13,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:13,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:13,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:50:13,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1febf107-bdde-4957-aa95-04234a73ab3c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:50:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-24 23:50:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-24 23:50:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-24 23:50:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-24 23:50:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-24 23:50:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-24 23:50:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-24 23:50:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:50:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:50:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:50:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:50:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:50:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:50:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-24 23:50:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-24 23:50:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:50:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:50:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:50:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:50:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-24 23:50:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-24 23:50:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:50:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:50:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-24 23:50:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-24 23:50:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-24 23:50:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-24 23:50:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:50:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:50:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-24 23:50:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-24 23:50:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:50:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:50:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-24 23:50:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-24 23:50:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:50:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:50:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:50:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-24 23:50:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-24 23:50:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:50:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:50:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-24 23:50:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-24 23:50:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:50:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:50:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:50:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:50:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:50:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:50:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-24 23:50:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-24 23:50:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:50:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:50:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-24 23:50:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-24 23:50:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:50:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-24 23:50:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-24 23:50:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-24 23:50:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-24 23:50:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-24 23:50:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-24 23:50:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-24 23:50:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-24 23:50:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:50:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:50:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:50:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:50:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-24 23:50:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-24 23:50:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-24 23:50:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-24 23:50:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:50:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:50:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:50:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-24 23:50:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-24 23:50:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-24 23:50:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-24 23:50:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:50:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:50:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:50:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:50:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-24 23:50:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-24 23:50:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:50:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:50:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-24 23:50:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-24 23:50:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:50:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:50:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:50:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:50:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:50:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:50:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:50:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:50:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-24 23:50:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-24 23:50:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-24 23:50:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-24 23:50:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-24 23:50:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-24 23:50:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:50:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:50:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:50:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:50:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:50:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-24 23:50:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-24 23:50:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:50:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-24 23:50:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-24 23:50:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:50:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:50:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:50:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:50:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:50:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:50:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:50:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-24 23:50:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-24 23:50:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-24 23:50:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-24 23:50:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-24 23:50:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-24 23:50:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-24 23:50:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-24 23:50:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-24 23:50:13,540 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-24 23:50:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:50:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:50:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:50:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:50:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-24 23:50:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-24 23:50:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:50:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:50:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-24 23:50:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-24 23:50:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-24 23:50:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-24 23:50:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-24 23:50:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-24 23:50:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-24 23:50:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-24 23:50:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:50:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:50:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:50:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:50:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:50:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:50:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-24 23:50:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-24 23:50:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-24 23:50:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-24 23:50:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:50:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:50:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-24 23:50:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-24 23:50:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-24 23:50:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-24 23:50:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-24 23:50:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-24 23:50:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-24 23:50:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-24 23:50:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:50:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:50:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-24 23:50:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-24 23:50:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:50:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:50:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-24 23:50:13,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-24 23:50:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-24 23:50:13,554 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-24 23:50:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:50:13,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:50:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:50:13,554 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:50:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-24 23:50:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-24 23:50:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:50:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-24 23:50:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-24 23:50:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:50:13,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:50:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-24 23:50:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-24 23:50:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:50:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:50:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:50:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:50:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-24 23:50:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-24 23:50:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-24 23:50:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-24 23:50:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:50:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:50:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:50:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:50:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-24 23:50:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-24 23:50:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-24 23:50:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-24 23:50:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-24 23:50:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-24 23:50:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-24 23:50:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-24 23:50:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-24 23:50:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-24 23:50:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-24 23:50:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-24 23:50:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:50:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:50:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:50:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:50:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-24 23:50:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-24 23:50:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:50:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:50:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-24 23:50:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-24 23:50:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-24 23:50:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-24 23:50:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:50:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-24 23:50:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-24 23:50:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-24 23:50:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-24 23:50:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:50:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:50:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-24 23:50:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-24 23:50:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-24 23:50:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-24 23:50:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-24 23:50:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-24 23:50:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-24 23:50:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-24 23:50:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-24 23:50:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-24 23:50:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-24 23:50:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-24 23:50:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-24 23:50:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-24 23:50:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-24 23:50:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-24 23:50:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:50:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:50:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-24 23:50:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-24 23:50:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-24 23:50:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-24 23:50:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-24 23:50:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-24 23:50:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-24 23:50:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-24 23:50:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:50:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:50:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-24 23:50:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-24 23:50:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:50:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-24 23:50:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-24 23:50:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:50:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:50:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-24 23:50:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-24 23:50:14,612 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:50:14,618 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:50:15,499 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:50:20,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:50:20,845 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:50:26,423 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:50:26,423 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:50:26,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:26 BoogieIcfgContainer [2023-11-24 23:50:26,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:50:26,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:50:26,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:50:26,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:50:26,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:50:07" (1/3) ... [2023-11-24 23:50:26,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7e2a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:26, skipping insertion in model container [2023-11-24 23:50:26,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:12" (2/3) ... [2023-11-24 23:50:26,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7e2a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:26, skipping insertion in model container [2023-11-24 23:50:26,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:26" (3/3) ... [2023-11-24 23:50:26,440 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:50:26,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:50:26,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:50:26,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:50:26,617 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;@2d773eb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:50:26,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:50:26,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 2037 states, 1136 states have (on average 1.266725352112676) internal successors, (1439), 1170 states have internal predecessors, (1439), 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) [2023-11-24 23:50:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-24 23:50:26,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:26,679 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] [2023-11-24 23:50:26,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:26,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:26,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1689056530, now seen corresponding path program 1 times [2023-11-24 23:50:26,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812325098] [2023-11-24 23:50:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:26,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:50:28,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:28,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812325098] [2023-11-24 23:50:28,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812325098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:28,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:28,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:50:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010768723] [2023-11-24 23:50:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:28,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:50:28,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:50:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:50:28,097 INFO L87 Difference]: Start difference. First operand has 2037 states, 1136 states have (on average 1.266725352112676) internal successors, (1439), 1170 states have internal predecessors, (1439), 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) [2023-11-24 23:50:34,657 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 [] [2023-11-24 23:50:36,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:50:37,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:37,290 INFO L93 Difference]: Finished difference Result 5987 states and 8771 transitions. [2023-11-24 23:50:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:50:37,293 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 [2023-11-24 23:50:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:37,347 INFO L225 Difference]: With dead ends: 5987 [2023-11-24 23:50:37,347 INFO L226 Difference]: Without dead ends: 3971 [2023-11-24 23:50:37,365 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 [2023-11-24 23:50:37,369 INFO L413 NwaCegarLoop]: 2604 mSDtfsCounter, 2872 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 5161 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:37,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 5161 Invalid, 788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 780 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2023-11-24 23:50:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3971 states. [2023-11-24 23:50:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3971 to 3969. [2023-11-24 23:50:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 2220 states have (on average 1.263063063063063) internal successors, (2804), 2287 states have internal predecessors, (2804), 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) [2023-11-24 23:50:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 5801 transitions. [2023-11-24 23:50:37,885 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 5801 transitions. Word has length 170 [2023-11-24 23:50:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:37,891 INFO L495 AbstractCegarLoop]: Abstraction has 3969 states and 5801 transitions. [2023-11-24 23:50:37,892 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) [2023-11-24 23:50:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 5801 transitions. [2023-11-24 23:50:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-24 23:50:37,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:37,913 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] [2023-11-24 23:50:37,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:50:37,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:37,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:37,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1363690996, now seen corresponding path program 1 times [2023-11-24 23:50:37,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:37,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904826457] [2023-11-24 23:50:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:50:38,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904826457] [2023-11-24 23:50:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904826457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:38,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:38,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:50:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267941574] [2023-11-24 23:50:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:38,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:50:38,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:38,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:50:38,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:50:38,539 INFO L87 Difference]: Start difference. First operand 3969 states and 5801 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) [2023-11-24 23:50:45,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:45,117 INFO L93 Difference]: Finished difference Result 8760 states and 12772 transitions. [2023-11-24 23:50:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:50:45,117 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 [2023-11-24 23:50:45,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:45,165 INFO L225 Difference]: With dead ends: 8760 [2023-11-24 23:50:45,165 INFO L226 Difference]: Without dead ends: 4822 [2023-11-24 23:50:45,190 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 [2023-11-24 23:50:45,191 INFO L413 NwaCegarLoop]: 2577 mSDtfsCounter, 2027 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:45,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 5111 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-24 23:50:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2023-11-24 23:50:45,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 4815. [2023-11-24 23:50:45,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4815 states, 2734 states have (on average 1.2640819312362839) internal successors, (3456), 2811 states have internal predecessors, (3456), 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) [2023-11-24 23:50:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4815 states to 4815 states and 6981 transitions. [2023-11-24 23:50:45,672 INFO L78 Accepts]: Start accepts. Automaton has 4815 states and 6981 transitions. Word has length 187 [2023-11-24 23:50:45,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:45,673 INFO L495 AbstractCegarLoop]: Abstraction has 4815 states and 6981 transitions. [2023-11-24 23:50:45,673 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) [2023-11-24 23:50:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4815 states and 6981 transitions. [2023-11-24 23:50:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-24 23:50:45,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:45,686 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] [2023-11-24 23:50:45,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:50:45,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:45,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:45,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1273794281, now seen corresponding path program 1 times [2023-11-24 23:50:45,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:45,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475755315] [2023-11-24 23:50:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2023-11-24 23:50:46,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475755315] [2023-11-24 23:50:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475755315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:50:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385307322] [2023-11-24 23:50:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:46,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:50:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:50:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:50:46,695 INFO L87 Difference]: Start difference. First operand 4815 states and 6981 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)