./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:37,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:37,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:47:37,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:37,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:37,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:37,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:37,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:37,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:37,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:37,849 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:37,850 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:37,851 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:37,851 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:37,852 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:37,853 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:37,854 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:37,855 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:37,855 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:37,856 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:37,857 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:37,858 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:37,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:37,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:37,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:37,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:37,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:37,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:37,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:37,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:37,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:37,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:37,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:37,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:37,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:37,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:37,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:37,868 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:37,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:37,869 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:37,870 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:37,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:37,871 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_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb [2023-11-19 04:47:38,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:38,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:38,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:38,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:38,199 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:38,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:47:41,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:42,412 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:42,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:47:42,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/data/7c719deef/586be29adacb4432807d1d3288fff903/FLAG0478083f3 [2023-11-19 04:47:42,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/data/7c719deef/586be29adacb4432807d1d3288fff903 [2023-11-19 04:47:42,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:42,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:42,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:42,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:42,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:42,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:42" (1/1) ... [2023-11-19 04:47:42,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482b16e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:42, skipping insertion in model container [2023-11-19 04:47:42,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:42" (1/1) ... [2023-11-19 04:47:42,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:46,190 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_45f5c128-886e-4073-ad61-5cf977c7f729/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-19 04:47:46,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:46,297 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:46,432 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"); [5541] [2023-11-19 04:47:46,434 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)); [5548] [2023-11-19 04:47:46,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5555] [2023-11-19 04:47:46,436 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5604-5605] [2023-11-19 04:47:46,437 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"); [5610-5612] [2023-11-19 04:47:46,438 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5637-5638] [2023-11-19 04:47:46,438 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"); [5643-5645] [2023-11-19 04:47:46,439 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5669-5670] [2023-11-19 04:47:46,440 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"); [5675-5677] [2023-11-19 04:47:46,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5703] [2023-11-19 04:47:46,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5849] [2023-11-19 04:47:46,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5856] [2023-11-19 04:47:46,508 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" (19), "i" (12UL)); [5968-5969] [2023-11-19 04:47:46,509 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)); [6002-6003] [2023-11-19 04:47:46,515 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)); [6177-6178] [2023-11-19 04:47:46,526 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)); [6357-6358] [2023-11-19 04:47:46,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6364] [2023-11-19 04:47:46,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7641] [2023-11-19 04:47:46,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7681] [2023-11-19 04:47:46,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7734] [2023-11-19 04:47:46,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7786] [2023-11-19 04:47:46,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7810] [2023-11-19 04:47:46,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7831] [2023-11-19 04:47:46,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7919] [2023-11-19 04:47:46,605 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)); [7938-7939] [2023-11-19 04:47:46,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7963] [2023-11-19 04:47:46,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7993] [2023-11-19 04:47:46,609 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)); [8017-8018] [2023-11-19 04:47:46,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8300] [2023-11-19 04:47:46,927 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_45f5c128-886e-4073-ad61-5cf977c7f729/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-19 04:47:46,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:47,251 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:47,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47 WrapperNode [2023-11-19 04:47:47,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:47,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:47,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:47,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:47,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,743 INFO L138 Inliner]: procedures = 414, calls = 2226, calls flagged for inlining = 248, calls inlined = 233, statements flattened = 6198 [2023-11-19 04:47:47,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:47,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:47,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:47,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:47,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:47,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:48,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:48,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:48,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:48,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:48,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:48,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:48,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:48,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (1/1) ... [2023-11-19 04:47:48,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:48,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:48,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f5c128-886e-4073-ad61-5cf977c7f729/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:47:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:47:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:47:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:47:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:47:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:47:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:47:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:47:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-19 04:47:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-19 04:47:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-19 04:47:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-19 04:47:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:47:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:47:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:47:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:47:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-19 04:47:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-19 04:47:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-19 04:47:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-19 04:47:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:47:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:47:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:47:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:47:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-19 04:47:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-19 04:47:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 04:47:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 04:47:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:47:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:47:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 04:47:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 04:47:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:47:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:47:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:47:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:47:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-19 04:47:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-19 04:47:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:47:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:47:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:47:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-19 04:47:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-19 04:47:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:47:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:47:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-19 04:47:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-19 04:47:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:47:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:47:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:47:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:47:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:47:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-19 04:47:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-19 04:47:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:47:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:47:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 04:47:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 04:47:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:47:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:47:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:47:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:47:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:47:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:47:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-19 04:47:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-19 04:47:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:47:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:47:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:47:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:47:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-19 04:47:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-19 04:47:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:47:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:47:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-19 04:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-19 04:47:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-19 04:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-19 04:47:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:47:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-19 04:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-19 04:47:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-19 04:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-19 04:47:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-19 04:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-19 04:47:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:47:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-19 04:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-19 04:47:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:47:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:47:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:47:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:47:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:47:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:47:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:47:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:47:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:47:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:47:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-19 04:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-19 04:47:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-19 04:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-19 04:47:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:47:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-19 04:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-19 04:47:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:47:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:47:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-19 04:47:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-19 04:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-19 04:47:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-19 04:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:47:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-19 04:47:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-19 04:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-19 04:47:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-19 04:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-19 04:47:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-19 04:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:47:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-19 04:47:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-19 04:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-19 04:47:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-19 04:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-19 04:47:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-19 04:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-19 04:47:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-19 04:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-19 04:47:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-19 04:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-19 04:47:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-19 04:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-19 04:47:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-19 04:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-19 04:47:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-19 04:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:47:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-19 04:47:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-19 04:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-19 04:47:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-19 04:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-19 04:47:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-19 04:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:47:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-19 04:47:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-19 04:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-19 04:47:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-19 04:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-19 04:47:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-19 04:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-19 04:47:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-19 04:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:47:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-19 04:47:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-19 04:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-19 04:47:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-19 04:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:47:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-19 04:47:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-19 04:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:47:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-19 04:47:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-19 04:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-19 04:47:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-19 04:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:47:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-19 04:47:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-19 04:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:47:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:47:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:47:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:47:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-19 04:47:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-19 04:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:47:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:47:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:47:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-19 04:47:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-19 04:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:47:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-19 04:47:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-19 04:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-19 04:47:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-19 04:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-19 04:47:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-19 04:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 04:47:48,263 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 04:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-19 04:47:48,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-19 04:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:47:48,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-19 04:47:48,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-19 04:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 04:47:48,264 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 04:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:47:48,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:47:48,265 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:47:49,418 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:49,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:49,585 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:47:57,551 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:00,471 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:00,472 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:48:00,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:00 BoogieIcfgContainer [2023-11-19 04:48:00,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:00,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:00,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:00,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:00,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:42" (1/3) ... [2023-11-19 04:48:00,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8b47f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:00, skipping insertion in model container [2023-11-19 04:48:00,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:47" (2/3) ... [2023-11-19 04:48:00,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8b47f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:00, skipping insertion in model container [2023-11-19 04:48:00,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:00" (3/3) ... [2023-11-19 04:48:00,509 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:48:00,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:00,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:48:00,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:00,677 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;@159272b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:00,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:48:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 1532 states, 913 states have (on average 1.2606790799561884) internal successors, (1151), 940 states have internal predecessors, (1151), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-19 04:48:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 04:48:00,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:00,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-19 04:48:00,702 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] === [2023-11-19 04:48:00,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1106963475, now seen corresponding path program 1 times [2023-11-19 04:48:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:00,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972993970] [2023-11-19 04:48:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:00,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 04:48:01,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:01,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972993970] [2023-11-19 04:48:01,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972993970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:01,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:01,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144894804] [2023-11-19 04:48:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:01,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:01,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:01,835 INFO L87 Difference]: Start difference. First operand has 1532 states, 913 states have (on average 1.2606790799561884) internal successors, (1151), 940 states have internal predecessors, (1151), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:48:06,307 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 [] [2023-11-19 04:48:08,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:08,915 INFO L93 Difference]: Finished difference Result 1548 states and 2192 transitions. [2023-11-19 04:48:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:48:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2023-11-19 04:48:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:08,979 INFO L225 Difference]: With dead ends: 1548 [2023-11-19 04:48:08,979 INFO L226 Difference]: Without dead ends: 1524 [2023-11-19 04:48:08,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:48:08,990 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2156 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:08,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 5649 Invalid, 844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2023-11-19 04:48:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2023-11-19 04:48:09,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2023-11-19 04:48:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 912 states have (on average 1.2543859649122806) internal successors, (1144), 935 states have internal predecessors, (1144), 505 states have call successors, (505), 107 states have call predecessors, (505), 106 states have return successors, (502), 497 states have call predecessors, (502), 502 states have call successors, (502) [2023-11-19 04:48:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2151 transitions. [2023-11-19 04:48:09,318 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2151 transitions. Word has length 35 [2023-11-19 04:48:09,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:09,318 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 2151 transitions. [2023-11-19 04:48:09,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:48:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2151 transitions. [2023-11-19 04:48:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 04:48:09,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:09,324 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-19 04:48:09,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:48:09,325 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] === [2023-11-19 04:48:09,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1050380503, now seen corresponding path program 1 times [2023-11-19 04:48:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581308213] [2023-11-19 04:48:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 04:48:09,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:09,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581308213] [2023-11-19 04:48:09,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581308213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:09,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:09,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:09,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128418991] [2023-11-19 04:48:09,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:09,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:09,898 INFO L87 Difference]: Start difference. First operand 1524 states and 2151 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:48:15,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:17,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:19,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:21,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:23,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:27,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:48:28,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:28,429 INFO L93 Difference]: Finished difference Result 2908 states and 4129 transitions. [2023-11-19 04:48:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:48:28,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2023-11-19 04:48:28,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:28,551 INFO L225 Difference]: With dead ends: 2908 [2023-11-19 04:48:28,551 INFO L226 Difference]: Without dead ends: 2906 [2023-11-19 04:48:28,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:48:28,562 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 2014 mSDsluCounter, 6211 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 8423 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:28,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 8423 Invalid, 1285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1277 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2023-11-19 04:48:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-11-19 04:48:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2882. [2023-11-19 04:48:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 1723 states have (on average 1.2524666279744632) internal successors, (2158), 1770 states have internal predecessors, (2158), 951 states have call successors, (951), 209 states have call predecessors, (951), 207 states have return successors, (987), 932 states have call predecessors, (987), 945 states have call successors, (987) [2023-11-19 04:48:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4096 transitions. [2023-11-19 04:48:28,937 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4096 transitions. Word has length 40 [2023-11-19 04:48:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:28,938 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 4096 transitions. [2023-11-19 04:48:28,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:48:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4096 transitions. [2023-11-19 04:48:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 04:48:28,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:28,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-19 04:48:28,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:48:28,952 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] === [2023-11-19 04:48:28,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:28,964 INFO L85 PathProgramCache]: Analyzing trace with hash -539576198, now seen corresponding path program 1 times [2023-11-19 04:48:28,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:28,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934307068] [2023-11-19 04:48:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:28,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 04:48:29,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934307068] [2023-11-19 04:48:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934307068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:29,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:48:29,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869835346] [2023-11-19 04:48:29,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:29,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:48:29,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:48:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:48:29,568 INFO L87 Difference]: Start difference. First operand 2882 states and 4096 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)