./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX --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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:26,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:26,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:48:26,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:26,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:26,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:26,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:26,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:26,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:26,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:26,664 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:26,665 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:26,665 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:26,666 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:26,666 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:26,667 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:26,668 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:26,668 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:26,669 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:26,670 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:26,670 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:26,671 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:26,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:26,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:26,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:26,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:26,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:26,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:26,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:26,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:26,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:26,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:26,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:26,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:26,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:26,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:26,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:26,700 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:26,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:26,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:26,701 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:26,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:26,701 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_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2023-11-12 00:48:27,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:27,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:27,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:27,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:27,083 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:27,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:48:30,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:30,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:30,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:48:31,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/data/c1ffb9be1/f35e60bc3bcc45d68aad5723d85cb758/FLAG77e94eefd [2023-11-12 00:48:31,064 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/data/c1ffb9be1/f35e60bc3bcc45d68aad5723d85cb758 [2023-11-12 00:48:31,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:31,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:31,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:31,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:31,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:31,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:31" (1/1) ... [2023-11-12 00:48:31,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64debc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:31, skipping insertion in model container [2023-11-12 00:48:31,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:31" (1/1) ... [2023-11-12 00:48:31,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:34,275 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_464ab743-94c3-4264-aebb-f27123fe239e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-12 00:48:34,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:34,370 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:34,480 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"); [5533] [2023-11-12 00:48:34,482 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)); [5540] [2023-11-12 00:48:34,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5547] [2023-11-12 00:48:34,485 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5596-5597] [2023-11-12 00:48:34,485 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"); [5602-5604] [2023-11-12 00:48:34,486 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5629-5630] [2023-11-12 00:48:34,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5635-5637] [2023-11-12 00:48:34,488 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5661-5662] [2023-11-12 00:48:34,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5667-5669] [2023-11-12 00:48:34,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5695] [2023-11-12 00:48:34,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5841] [2023-11-12 00:48:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5848] [2023-11-12 00:48:34,502 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)); [5960-5961] [2023-11-12 00:48:34,508 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)); [5994-5995] [2023-11-12 00:48:34,517 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/skbuff.h"), "i" (1516), "i" (12UL)); [6169-6170] [2023-11-12 00:48:34,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [6349-6350] [2023-11-12 00:48:34,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6356] [2023-11-12 00:48:34,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2023-11-12 00:48:34,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7673] [2023-11-12 00:48:34,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7726] [2023-11-12 00:48:34,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7778] [2023-11-12 00:48:34,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7802] [2023-11-12 00:48:34,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7823] [2023-11-12 00:48:34,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7911] [2023-11-12 00:48:34,649 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/cadence/macb.c"), "i" (808), "i" (12UL)); [7930-7931] [2023-11-12 00:48:34,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7955] [2023-11-12 00:48:34,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7985] [2023-11-12 00:48:34,653 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/cadence/macb.c"), "i" (863), "i" (12UL)); [8009-8010] [2023-11-12 00:48:34,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8292] [2023-11-12 00:48:34,874 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_464ab743-94c3-4264-aebb-f27123fe239e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-12 00:48:34,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:35,155 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:35,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35 WrapperNode [2023-11-12 00:48:35,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:35,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:35,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:35,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:35,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,582 INFO L138 Inliner]: procedures = 426, calls = 2261, calls flagged for inlining = 259, calls inlined = 248, statements flattened = 6534 [2023-11-12 00:48:35,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:35,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:35,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:35,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:35,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:35,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:35,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:35,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:35,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (1/1) ... [2023-11-12 00:48:35,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:35,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:35,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:35,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464ab743-94c3-4264-aebb-f27123fe239e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:48:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:48:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:48:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:48:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:48:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:48:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:48:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:48:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-12 00:48:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-12 00:48:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-12 00:48:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-12 00:48:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:48:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:48:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:48:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:48:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-12 00:48:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-12 00:48:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-12 00:48:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-12 00:48:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:48:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:48:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:48:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:48:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-12 00:48:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-12 00:48:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:48:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:48:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:48:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:48:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-12 00:48:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-12 00:48:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:48:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:48:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:48:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:48:35,961 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-12 00:48:35,961 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-12 00:48:35,961 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:48:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:48:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-12 00:48:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:48:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-12 00:48:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:48:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:48:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:48:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-12 00:48:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-12 00:48:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:48:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:48:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-12 00:48:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-12 00:48:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:48:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:48:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:48:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:48:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:48:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-12 00:48:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-12 00:48:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:48:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:48:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-12 00:48:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-12 00:48:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:48:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-12 00:48:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:48:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-12 00:48:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-12 00:48:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:48:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:48:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:48:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:48:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-12 00:48:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-12 00:48:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-12 00:48:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-12 00:48:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-12 00:48:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-12 00:48:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-12 00:48:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-12 00:48:36,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:36,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:48:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:48:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-12 00:48:36,050 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-12 00:48:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:36,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:48:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:48:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:48:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 00:48:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 00:48:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:48:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:48:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:48:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:48:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:48:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:48:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-12 00:48:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-12 00:48:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-12 00:48:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-12 00:48:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:48:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:48:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-12 00:48:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-12 00:48:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:48:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:48:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:48:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:48:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-12 00:48:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-12 00:48:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-12 00:48:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-12 00:48:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:48:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:48:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-12 00:48:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-12 00:48:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:48:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:48:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-12 00:48:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-12 00:48:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-12 00:48:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-12 00:48:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:48:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:48:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-12 00:48:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-12 00:48:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-12 00:48:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-12 00:48:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-12 00:48:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-12 00:48:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-12 00:48:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-12 00:48:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-12 00:48:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-12 00:48:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-12 00:48:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-12 00:48:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-12 00:48:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-12 00:48:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-12 00:48:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-12 00:48:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:48:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:48:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-12 00:48:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-12 00:48:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-12 00:48:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-12 00:48:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-12 00:48:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-12 00:48:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:48:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:48:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-12 00:48:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-12 00:48:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-12 00:48:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-12 00:48:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-12 00:48:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-12 00:48:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:48:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-12 00:48:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-12 00:48:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:48:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:48:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-12 00:48:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-12 00:48:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-12 00:48:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-12 00:48:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:48:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:48:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-12 00:48:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-12 00:48:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:48:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-12 00:48:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-12 00:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-12 00:48:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-12 00:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-12 00:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-12 00:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 00:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 00:48:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:48:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:48:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:48:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:48:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-12 00:48:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-12 00:48:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:48:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:48:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:48:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:48:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:48:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:48:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-12 00:48:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-12 00:48:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:48:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:48:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-12 00:48:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-12 00:48:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-12 00:48:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-12 00:48:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-12 00:48:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-12 00:48:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:48:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:48:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-12 00:48:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-12 00:48:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:48:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:48:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-12 00:48:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-12 00:48:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-12 00:48:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-12 00:48:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:48:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:48:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-12 00:48:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-12 00:48:37,081 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:37,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:37,178 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:48:45,326 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:48:45,538 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:48,237 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:48,238 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:48:48,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:48 BoogieIcfgContainer [2023-11-12 00:48:48,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:48,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:48,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:48,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:48,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:31" (1/3) ... [2023-11-12 00:48:48,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b83ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:48, skipping insertion in model container [2023-11-12 00:48:48,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:35" (2/3) ... [2023-11-12 00:48:48,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680b83ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:48, skipping insertion in model container [2023-11-12 00:48:48,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:48" (3/3) ... [2023-11-12 00:48:48,264 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:48:48,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:48,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:48,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:48,412 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;@70e79169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:48,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1041 states have (on average 1.2910662824207493) internal successors, (1344), 1059 states have internal predecessors, (1344), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) [2023-11-12 00:48:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-12 00:48:48,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:48,463 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:48,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:48,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1148156112, now seen corresponding path program 1 times [2023-11-12 00:48:48,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089371933] [2023-11-12 00:48:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:48,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-12 00:48:49,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089371933] [2023-11-12 00:48:49,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089371933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:49,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:49,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:49,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441550301] [2023-11-12 00:48:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:49,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:49,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:49,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:49,749 INFO L87 Difference]: Start difference. First operand has 1706 states, 1041 states have (on average 1.2910662824207493) internal successors, (1344), 1059 states have internal predecessors, (1344), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-12 00:48:55,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:56,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:57,687 INFO L93 Difference]: Finished difference Result 5015 states and 7193 transitions. [2023-11-12 00:48:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:57,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2023-11-12 00:48:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:57,758 INFO L225 Difference]: With dead ends: 5015 [2023-11-12 00:48:57,759 INFO L226 Difference]: Without dead ends: 3320 [2023-11-12 00:48:57,779 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 [2023-11-12 00:48:57,782 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 2363 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:57,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 4166 Invalid, 705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-12 00:48:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2023-11-12 00:48:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3320. [2023-11-12 00:48:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 2036 states have (on average 1.288310412573674) internal successors, (2623), 2072 states have internal predecessors, (2623), 1064 states have call successors, (1064), 220 states have call predecessors, (1064), 219 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2023-11-12 00:48:58,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4748 transitions. [2023-11-12 00:48:58,155 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4748 transitions. Word has length 127 [2023-11-12 00:48:58,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:58,157 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 4748 transitions. [2023-11-12 00:48:58,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-12 00:48:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4748 transitions. [2023-11-12 00:48:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-12 00:48:58,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:58,183 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2023-11-12 00:48:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:58,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:58,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:58,185 INFO L85 PathProgramCache]: Analyzing trace with hash 365455425, now seen corresponding path program 1 times [2023-11-12 00:48:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:58,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354435473] [2023-11-12 00:48:58,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:58,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-12 00:48:59,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:59,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354435473] [2023-11-12 00:48:59,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354435473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:59,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:59,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:48:59,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857421080] [2023-11-12 00:48:59,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:59,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:59,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:59,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:59,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:59,163 INFO L87 Difference]: Start difference. First operand 3320 states and 4748 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:49:01,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:49:05,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:49:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:08,270 INFO L93 Difference]: Finished difference Result 3326 states and 4753 transitions. [2023-11-12 00:49:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:49:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2023-11-12 00:49:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:08,305 INFO L225 Difference]: With dead ends: 3326 [2023-11-12 00:49:08,306 INFO L226 Difference]: Without dead ends: 3324 [2023-11-12 00:49:08,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:49:08,310 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 2378 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 6192 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:08,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 6192 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1055 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2023-11-12 00:49:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-11-12 00:49:08,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-11-12 00:49:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 2039 states have (on average 1.2878862187346738) internal successors, (2626), 2075 states have internal predecessors, (2626), 1064 states have call successors, (1064), 221 states have call predecessors, (1064), 220 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2023-11-12 00:49:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4751 transitions. [2023-11-12 00:49:08,571 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4751 transitions. Word has length 165 [2023-11-12 00:49:08,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:08,572 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4751 transitions. [2023-11-12 00:49:08,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:49:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4751 transitions. [2023-11-12 00:49:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-12 00:49:08,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:08,584 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2023-11-12 00:49:08,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:49:08,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:08,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1308526759, now seen corresponding path program 1 times [2023-11-12 00:49:08,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189286876] [2023-11-12 00:49:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-12 00:49:09,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:09,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189286876] [2023-11-12 00:49:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189286876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:09,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:09,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:49:09,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214500245] [2023-11-12 00:49:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:09,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:49:09,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:49:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:49:09,322 INFO L87 Difference]: Start difference. First operand 3324 states and 4751 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:49:13,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:49:17,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []