./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 30e01a73 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_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/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_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:13,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:13,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:17:13,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:13,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:13,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:13,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:13,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:13,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:13,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:13,859 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:13,860 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:13,861 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:13,865 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:17:13,866 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:13,866 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:13,867 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:17:13,868 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:17:13,869 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:13,869 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:17:13,869 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:17:13,870 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:17:13,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:13,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:13,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:17:13,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:13,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:13,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:13,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:13,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:13,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:13,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:13,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:13,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:13,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:13,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:13,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:13,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:13,877 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:17:13,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:17:13,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:13,878 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:13,878 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:13,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:13,879 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_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2023-11-23 21:17:14,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:14,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:14,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:14,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:14,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:14,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 21:17:17,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:18,218 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:18,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 21:17:18,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/data/3da38618b/bd57e347f6ca483d8b04ab8112f3ef20/FLAG6df99ba79 [2023-11-23 21:17:18,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/data/3da38618b/bd57e347f6ca483d8b04ab8112f3ef20 [2023-11-23 21:17:18,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:18,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:18,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:18,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:18,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:18,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7605dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18, skipping insertion in model container [2023-11-23 21:17:18,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:21,759 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_b4a0587b-c410-4245-a6f1-da8ada815db8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-23 21:17:21,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:21,851 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:22,051 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] [2023-11-23 21:17:22,054 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] [2023-11-23 21:17:22,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5547] [2023-11-23 21:17:22,057 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] [2023-11-23 21:17:22,058 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] [2023-11-23 21:17:22,059 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] [2023-11-23 21:17:22,059 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] [2023-11-23 21:17:22,061 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] [2023-11-23 21:17:22,061 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] [2023-11-23 21:17:22,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5695] [2023-11-23 21:17:22,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5841] [2023-11-23 21:17:22,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5848] [2023-11-23 21:17:22,080 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] [2023-11-23 21:17:22,083 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] [2023-11-23 21:17:22,095 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] [2023-11-23 21:17:22,102 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] [2023-11-23 21:17:22,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6356] [2023-11-23 21:17:22,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2023-11-23 21:17:22,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7673] [2023-11-23 21:17:22,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7726] [2023-11-23 21:17:22,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7778] [2023-11-23 21:17:22,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7802] [2023-11-23 21:17:22,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7823] [2023-11-23 21:17:22,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7911] [2023-11-23 21:17:22,263 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] [2023-11-23 21:17:22,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7955] [2023-11-23 21:17:22,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7985] [2023-11-23 21:17:22,267 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] [2023-11-23 21:17:22,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8292] [2023-11-23 21:17:22,527 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_b4a0587b-c410-4245-a6f1-da8ada815db8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-23 21:17:22,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:22,800 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:22,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22 WrapperNode [2023-11-23 21:17:22,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:22,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:22,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:22,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:22,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:22,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,215 INFO L138 Inliner]: procedures = 426, calls = 2261, calls flagged for inlining = 259, calls inlined = 248, statements flattened = 6534 [2023-11-23 21:17:23,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:23,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:23,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:23,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:23,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:23,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:23,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:23,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:23,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:23,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:23,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:23,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:23,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4a0587b-c410-4245-a6f1-da8ada815db8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:17:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:17:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:17:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:17:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:17:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:17:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:17:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:17:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-23 21:17:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-23 21:17:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 21:17:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 21:17:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:17:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:17:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:17:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:17:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-23 21:17:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-23 21:17:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-23 21:17:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-23 21:17:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-23 21:17:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-23 21:17:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:17:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:17:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-23 21:17:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-23 21:17:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 21:17:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 21:17:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:17:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:17:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-23 21:17:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-23 21:17:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:17:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:17:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:17:23,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:17:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-23 21:17:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-23 21:17:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:17:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:17:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:17:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-23 21:17:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-23 21:17:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:17:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:17:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-23 21:17:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-23 21:17:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:17:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:17:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:17:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:17:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:17:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-23 21:17:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-23 21:17:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:17:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:17:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-23 21:17:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-23 21:17:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:17:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:17:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:17:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:17:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:17:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:17:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-23 21:17:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-23 21:17:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:17:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:17:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 21:17:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 21:17:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:17:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:17:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-23 21:17:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-23 21:17:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:17:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:17:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-23 21:17:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-23 21:17:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-23 21:17:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-23 21:17:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:17:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:17:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:17:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:17:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:17:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-23 21:17:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-23 21:17:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-23 21:17:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-23 21:17:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-23 21:17:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-23 21:17:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 21:17:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 21:17:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:17:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:17:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-23 21:17:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-23 21:17:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:17:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:17:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:17:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:17:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:17:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 21:17:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 21:17:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:17:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:17:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:17:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:17:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:17:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:17:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-23 21:17:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-23 21:17:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-23 21:17:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-23 21:17:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:17:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:17:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-23 21:17:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-23 21:17:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:17:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:17:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:17:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:17:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-23 21:17:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-23 21:17:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-23 21:17:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-23 21:17:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:17:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:17:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-23 21:17:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-23 21:17:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:17:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:17:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-23 21:17:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-23 21:17:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-23 21:17:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-23 21:17:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:17:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:17:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-23 21:17:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-23 21:17:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-23 21:17:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-23 21:17:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-23 21:17:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-23 21:17:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-23 21:17:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-23 21:17:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-23 21:17:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-23 21:17:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-23 21:17:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-23 21:17:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-23 21:17:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-23 21:17:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 21:17:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 21:17:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:17:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:17:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-23 21:17:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-23 21:17:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:17:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-23 21:17:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-23 21:17:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 21:17:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 21:17:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:17:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:17:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-23 21:17:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-23 21:17:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:17:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-23 21:17:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-23 21:17:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-23 21:17:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-23 21:17:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:17:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-23 21:17:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-23 21:17:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:17:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:17:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-23 21:17:23,838 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-23 21:17:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-23 21:17:23,838 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-23 21:17:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:17:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:17:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-23 21:17:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-23 21:17:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:17:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:17:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-23 21:17:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-23 21:17:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-23 21:17:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-23 21:17:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:17:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:17:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-23 21:17:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-23 21:17:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:17:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:17:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:17:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:17:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:17:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:17:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:17:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:17:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-23 21:17:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-23 21:17:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:17:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:17:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:17:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:17:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:17:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:17:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:17:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-23 21:17:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-23 21:17:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:17:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:17:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-23 21:17:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-23 21:17:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-23 21:17:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-23 21:17:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-23 21:17:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-23 21:17:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:17:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:17:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-23 21:17:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-23 21:17:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:17:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:17:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-23 21:17:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-23 21:17:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 21:17:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 21:17:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:17:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:17:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:17:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 21:17:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 21:17:25,046 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:25,052 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:25,198 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:17:34,200 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:17:34,381 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:36,898 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:36,898 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:36,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:36 BoogieIcfgContainer [2023-11-23 21:17:36,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:36,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:36,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:36,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:36,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:18" (1/3) ... [2023-11-23 21:17:36,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa1a2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:36, skipping insertion in model container [2023-11-23 21:17:36,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22" (2/3) ... [2023-11-23 21:17:36,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa1a2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:36, skipping insertion in model container [2023-11-23 21:17:36,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:36" (3/3) ... [2023-11-23 21:17:36,910 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 21:17:36,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:36,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:37,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:37,031 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;@57822e22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:37,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:37,044 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) [2023-11-23 21:17:37,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 21:17:37,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:37,066 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] [2023-11-23 21:17:37,067 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] === [2023-11-23 21:17:37,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash -472602234, now seen corresponding path program 1 times [2023-11-23 21:17:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:37,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811912627] [2023-11-23 21:17:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:37,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:17:38,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811912627] [2023-11-23 21:17:38,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811912627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:38,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:38,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:38,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952436582] [2023-11-23 21:17:38,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:38,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:38,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:38,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:38,348 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) [2023-11-23 21:17:41,110 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 [] [2023-11-23 21:17:45,801 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 [] [2023-11-23 21:17:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:46,701 INFO L93 Difference]: Finished difference Result 5015 states and 7193 transitions. [2023-11-23 21:17:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:46,704 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 [2023-11-23 21:17:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:46,752 INFO L225 Difference]: With dead ends: 5015 [2023-11-23 21:17:46,753 INFO L226 Difference]: Without dead ends: 3320 [2023-11-23 21:17:46,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:46,772 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 2363 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:46,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 4166 Invalid, 706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 701 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2023-11-23 21:17:46,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2023-11-23 21:17:47,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3320. [2023-11-23 21:17:47,094 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) [2023-11-23 21:17:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4748 transitions. [2023-11-23 21:17:47,135 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4748 transitions. Word has length 127 [2023-11-23 21:17:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:47,139 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 4748 transitions. [2023-11-23 21:17:47,139 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) [2023-11-23 21:17:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4748 transitions. [2023-11-23 21:17:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-23 21:17:47,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:47,167 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] [2023-11-23 21:17:47,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:17:47,168 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] === [2023-11-23 21:17:47,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:47,169 INFO L85 PathProgramCache]: Analyzing trace with hash 220714602, now seen corresponding path program 1 times [2023-11-23 21:17:47,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:47,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122144161] [2023-11-23 21:17:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:47,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-23 21:17:48,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:48,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122144161] [2023-11-23 21:17:48,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122144161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:48,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:48,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:48,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983574382] [2023-11-23 21:17:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:48,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:48,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:48,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:48,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:17:48,068 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) [2023-11-23 21:17:51,039 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 [] [2023-11-23 21:17:53,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:56,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:56,914 INFO L93 Difference]: Finished difference Result 3326 states and 4753 transitions. [2023-11-23 21:17:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:56,915 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 [2023-11-23 21:17:56,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:56,946 INFO L225 Difference]: With dead ends: 3326 [2023-11-23 21:17:56,946 INFO L226 Difference]: Without dead ends: 3324 [2023-11-23 21:17:56,949 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 [2023-11-23 21:17:56,950 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 2378 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 8.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:56,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 6192 Invalid, 1057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1055 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2023-11-23 21:17:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-11-23 21:17:57,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-11-23 21:17:57,243 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) [2023-11-23 21:17:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4751 transitions. [2023-11-23 21:17:57,275 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4751 transitions. Word has length 165 [2023-11-23 21:17:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:57,276 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4751 transitions. [2023-11-23 21:17:57,276 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) [2023-11-23 21:17:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4751 transitions. [2023-11-23 21:17:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-23 21:17:57,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:57,289 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] [2023-11-23 21:17:57,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:57,290 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] === [2023-11-23 21:17:57,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 353012766, now seen corresponding path program 1 times [2023-11-23 21:17:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:57,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419136390] [2023-11-23 21:17:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-23 21:17:57,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:57,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419136390] [2023-11-23 21:17:57,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419136390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:57,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:57,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:57,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078613299] [2023-11-23 21:17:57,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:57,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:57,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:17:57,961 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) [2023-11-23 21:18:00,881 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 []