./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 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_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/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_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/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_45e75dbc-1842-46e9-912e-b1c73f07381a/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_45e75dbc-1842-46e9-912e-b1c73f07381a/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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:15,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:15,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:54:15,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:15,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:15,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:15,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:15,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:15,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:15,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:15,833 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:15,833 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:15,834 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:15,836 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:15,836 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:15,837 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:15,837 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:15,838 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:15,838 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:15,839 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:15,839 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:15,840 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:15,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:15,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:15,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:15,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:15,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:15,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:15,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:15,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:15,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:15,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:15,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:15,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:15,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:15,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:15,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:15,849 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:15,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:15,849 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:15,849 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:15,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:15,850 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_45e75dbc-1842-46e9-912e-b1c73f07381a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2023-11-19 04:54:16,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:16,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:16,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:16,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:16,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:16,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:54:19,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:20,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:20,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:54:20,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/data/58848697c/d88bd74b645b4b64845b72bbc37547cc/FLAGd0175a18a [2023-11-19 04:54:20,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/data/58848697c/d88bd74b645b4b64845b72bbc37547cc [2023-11-19 04:54:20,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:20,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:20,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:20,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:20,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:20,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:20" (1/1) ... [2023-11-19 04:54:20,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fb4378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:20, skipping insertion in model container [2023-11-19 04:54:20,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:20" (1/1) ... [2023-11-19 04:54:20,422 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:23,218 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_45e75dbc-1842-46e9-912e-b1c73f07381a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-19 04:54:23,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:23,346 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:23,492 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] [2023-11-19 04:54:23,494 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] [2023-11-19 04:54:23,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5547] [2023-11-19 04:54:23,496 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] [2023-11-19 04:54:23,497 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] [2023-11-19 04:54:23,498 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] [2023-11-19 04:54:23,498 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] [2023-11-19 04:54:23,499 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] [2023-11-19 04:54:23,499 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] [2023-11-19 04:54:23,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5695] [2023-11-19 04:54:23,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5841] [2023-11-19 04:54:23,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5848] [2023-11-19 04:54:23,517 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/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5960-5961] [2023-11-19 04:54:23,519 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] [2023-11-19 04:54:23,528 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] [2023-11-19 04:54:23,535 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] [2023-11-19 04:54:23,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6356] [2023-11-19 04:54:23,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2023-11-19 04:54:23,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7673] [2023-11-19 04:54:23,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7726] [2023-11-19 04:54:23,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7778] [2023-11-19 04:54:23,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7802] [2023-11-19 04:54:23,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7823] [2023-11-19 04:54:23,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7911] [2023-11-19 04:54:23,694 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] [2023-11-19 04:54:23,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7955] [2023-11-19 04:54:23,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7985] [2023-11-19 04:54:23,698 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] [2023-11-19 04:54:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8292] [2023-11-19 04:54:23,959 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_45e75dbc-1842-46e9-912e-b1c73f07381a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-19 04:54:23,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:24,204 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:24,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24 WrapperNode [2023-11-19 04:54:24,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:24,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:24,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:24,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:24,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,689 INFO L138 Inliner]: procedures = 426, calls = 2261, calls flagged for inlining = 259, calls inlined = 248, statements flattened = 6534 [2023-11-19 04:54:24,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:24,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:24,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:24,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:24,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:25,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:25,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:25,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:25,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:25,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:25,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:25,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75dbc-1842-46e9-912e-b1c73f07381a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:54:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:54:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:54:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:54:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:54:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:54:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:54:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:54:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-19 04:54:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-19 04:54:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-19 04:54:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-19 04:54:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:54:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:54:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:54:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:54:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-19 04:54:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-19 04:54:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-19 04:54:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-19 04:54:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:54:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:54:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:54:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:54:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-19 04:54:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-19 04:54:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 04:54:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 04:54:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:54:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:54:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 04:54:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 04:54:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:54:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:54:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:54:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:54:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-19 04:54:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-19 04:54:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:54:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:54:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:54:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-19 04:54:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-19 04:54:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:54:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:54:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-19 04:54:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-19 04:54:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:54:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:54:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:54:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:54:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:54:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-19 04:54:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-19 04:54:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:54:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:54:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 04:54:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 04:54:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:54:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:54:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:54:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:54:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:54:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:54:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-19 04:54:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-19 04:54:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:54:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:54:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:54:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:54:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:54:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:54:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-19 04:54:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-19 04:54:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:54:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:54:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-19 04:54:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-19 04:54:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-19 04:54:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-19 04:54:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:54:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:54:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:54:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:54:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:54:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 04:54:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 04:54:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-19 04:54:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-19 04:54:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-19 04:54:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-19 04:54:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-19 04:54:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-19 04:54:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:25,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:54:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:54:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-19 04:54:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-19 04:54:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:54:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:54:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:54:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:54:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:54:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:54:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:54:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:54:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:54:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:54:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:54:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:54:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:54:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-19 04:54:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-19 04:54:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-19 04:54:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-19 04:54:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:54:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:54:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-19 04:54:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-19 04:54:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:54:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:54:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:54:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:54:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-19 04:54:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-19 04:54:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-19 04:54:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-19 04:54:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:54:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:54:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-19 04:54:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-19 04:54:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:54:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:54:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-19 04:54:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-19 04:54:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-19 04:54:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-19 04:54:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:54:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:54:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-19 04:54:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-19 04:54:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-19 04:54:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-19 04:54:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-19 04:54:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-19 04:54:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-19 04:54:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-19 04:54:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-19 04:54:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-19 04:54:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-19 04:54:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-19 04:54:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-19 04:54:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-19 04:54:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-19 04:54:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-19 04:54:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:54:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:54:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-19 04:54:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-19 04:54:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:54:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-19 04:54:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-19 04:54:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-19 04:54:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-19 04:54:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:54:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:54:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-19 04:54:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-19 04:54:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:54:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-19 04:54:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-19 04:54:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-19 04:54:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-19 04:54:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:54:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-19 04:54:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-19 04:54:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:54:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:54:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-19 04:54:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-19 04:54:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-19 04:54:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-19 04:54:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:54:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:54:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-19 04:54:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-19 04:54:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:54:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:54:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-19 04:54:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-19 04:54:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-19 04:54:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-19 04:54:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:54:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:54:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-19 04:54:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-19 04:54:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:54:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:54:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:54:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:54:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:54:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:54:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:54:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:54:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-19 04:54:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-19 04:54:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:54:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:54:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:54:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:54:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:54:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:54:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:54:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-19 04:54:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-19 04:54:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:54:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:54:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-19 04:54:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-19 04:54:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-19 04:54:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-19 04:54:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-19 04:54:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-19 04:54:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 04:54:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 04:54:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-19 04:54:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-19 04:54:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:54:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:54:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-19 04:54:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-19 04:54:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 04:54:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 04:54:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:54:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:54:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:54:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:54:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:54:26,212 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:26,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:26,377 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:54:33,995 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:54:34,187 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:36,888 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:36,888 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:36,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:36 BoogieIcfgContainer [2023-11-19 04:54:36,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:36,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:36,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:36,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:36,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:20" (1/3) ... [2023-11-19 04:54:36,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:36, skipping insertion in model container [2023-11-19 04:54:36,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (2/3) ... [2023-11-19 04:54:36,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:36, skipping insertion in model container [2023-11-19 04:54:36,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:36" (3/3) ... [2023-11-19 04:54:36,924 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-19 04:54:36,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:36,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:54:37,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:37,073 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;@541b10fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:37,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:54:37,089 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) [2023-11-19 04:54:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 04:54:37,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:37,128 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] [2023-11-19 04:54:37,129 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 04:54:37,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1148156112, now seen corresponding path program 1 times [2023-11-19 04:54:37,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:37,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750643976] [2023-11-19 04:54:37,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-19 04:54:38,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:38,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750643976] [2023-11-19 04:54:38,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750643976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:38,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:38,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:54:38,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649351372] [2023-11-19 04:54:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:38,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:54:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:38,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:54:38,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:38,333 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) [2023-11-19 04:54:40,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:54:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:43,835 INFO L93 Difference]: Finished difference Result 5015 states and 7193 transitions. [2023-11-19 04:54:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:54:43,838 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 [2023-11-19 04:54:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:43,903 INFO L225 Difference]: With dead ends: 5015 [2023-11-19 04:54:43,903 INFO L226 Difference]: Without dead ends: 3320 [2023-11-19 04:54:43,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:43,932 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 2363 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 5.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:43,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 4166 Invalid, 705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-19 04:54:43,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2023-11-19 04:54:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3320. [2023-11-19 04:54:44,427 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) [2023-11-19 04:54:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4748 transitions. [2023-11-19 04:54:44,472 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4748 transitions. Word has length 127 [2023-11-19 04:54:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:44,475 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 4748 transitions. [2023-11-19 04:54:44,475 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) [2023-11-19 04:54:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4748 transitions. [2023-11-19 04:54:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-19 04:54:44,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:44,499 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] [2023-11-19 04:54:44,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:54:44,500 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 04:54:44,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 365455425, now seen corresponding path program 1 times [2023-11-19 04:54:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716911698] [2023-11-19 04:54:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-19 04:54:45,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:45,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716911698] [2023-11-19 04:54:45,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716911698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:45,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:45,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:54:45,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055007193] [2023-11-19 04:54:45,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:45,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:54:45,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:54:45,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:54:45,332 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) [2023-11-19 04:54:47,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:54:49,673 WARN L539 Checker$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 04:54:51,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:54:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:55,190 INFO L93 Difference]: Finished difference Result 3326 states and 4753 transitions. [2023-11-19 04:54:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:54:55,191 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 [2023-11-19 04:54:55,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:55,398 INFO L225 Difference]: With dead ends: 3326 [2023-11-19 04:54:55,398 INFO L226 Difference]: Without dead ends: 3324 [2023-11-19 04:54:55,401 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 [2023-11-19 04:54:55,402 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 2378 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 6192 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:55,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 6192 Invalid, 1057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1055 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2023-11-19 04:54:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-11-19 04:54:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-11-19 04:54:55,774 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) [2023-11-19 04:54:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4751 transitions. [2023-11-19 04:54:55,821 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4751 transitions. Word has length 165 [2023-11-19 04:54:55,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:55,824 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4751 transitions. [2023-11-19 04:54:55,825 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) [2023-11-19 04:54:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4751 transitions. [2023-11-19 04:54:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 04:54:55,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:55,844 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] [2023-11-19 04:54:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:54:55,845 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 04:54:55,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1308526759, now seen corresponding path program 1 times [2023-11-19 04:54:55,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:55,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777266781] [2023-11-19 04:54:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:55,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-19 04:54:56,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:56,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777266781] [2023-11-19 04:54:56,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777266781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:56,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:56,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:54:56,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762735253] [2023-11-19 04:54:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:56,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:54:56,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:54:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:54:56,908 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) [2023-11-19 04:55:00,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:02,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:07,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []