./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:10,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:10,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:59:10,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:10,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:10,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:10,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:10,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:10,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:10,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:10,586 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:10,586 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:10,587 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:10,588 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:59:10,588 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:10,589 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:10,589 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:59:10,590 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:59:10,590 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:10,591 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:59:10,592 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:59:10,593 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:59:10,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:10,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:59:10,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:59:10,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:10,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:59:10,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:10,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:59:10,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:59:10,598 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:10,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:10,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:10,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:10,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:10,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:10,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:10,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:59:10,602 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:59:10,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:59:10,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:10,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:59:10,604 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:10,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:10,606 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_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb [2023-11-24 23:59:10,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:10,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:10,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:10,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:10,956 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:10,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-24 23:59:14,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:14,798 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:14,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-24 23:59:14,864 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/data/9d38bc884/b7580084590342128b9da2bc895dfda7/FLAGe8b07fd79 [2023-11-24 23:59:14,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/data/9d38bc884/b7580084590342128b9da2bc895dfda7 [2023-11-24 23:59:14,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:14,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:14,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:14,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:14,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:14,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:14" (1/1) ... [2023-11-24 23:59:14,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c885c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:14, skipping insertion in model container [2023-11-24 23:59:14,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:14" (1/1) ... [2023-11-24 23:59:15,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:17,862 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_7e14cbec-96d0-487f-b8a8-7f68f12bc265/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-24 23:59:17,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:17,949 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:59:18,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5541] [2023-11-24 23:59:18,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5548] [2023-11-24 23:59:18,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5555] [2023-11-24 23:59:18,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5604-5605] [2023-11-24 23:59:18,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5610-5612] [2023-11-24 23:59:18,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5637-5638] [2023-11-24 23:59:18,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5643-5645] [2023-11-24 23:59:18,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/076166e/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5669-5670] [2023-11-24 23:59:18,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5675-5677] [2023-11-24 23:59:18,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5703] [2023-11-24 23:59:18,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5849] [2023-11-24 23:59:18,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5856] [2023-11-24 23:59:18,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5968-5969] [2023-11-24 23:59:18,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6002-6003] [2023-11-24 23:59:18,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/skbuff.h"), "i" (1516), "i" (12UL)); [6177-6178] [2023-11-24 23:59:18,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [6357-6358] [2023-11-24 23:59:18,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6364] [2023-11-24 23:59:18,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7641] [2023-11-24 23:59:18,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7681] [2023-11-24 23:59:18,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7734] [2023-11-24 23:59:18,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7786] [2023-11-24 23:59:18,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7810] [2023-11-24 23:59:18,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7831] [2023-11-24 23:59:18,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7919] [2023-11-24 23:59:18,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (808), "i" (12UL)); [7938-7939] [2023-11-24 23:59:18,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7963] [2023-11-24 23:59:18,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7993] [2023-11-24 23:59:18,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (863), "i" (12UL)); [8017-8018] [2023-11-24 23:59:18,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8300] [2023-11-24 23:59:18,578 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_7e14cbec-96d0-487f-b8a8-7f68f12bc265/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-24 23:59:18,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:18,855 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:59:18,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18 WrapperNode [2023-11-24 23:59:18,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:18,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:18,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:59:18,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:59:18,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:18,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,219 INFO L138 Inliner]: procedures = 414, calls = 2226, calls flagged for inlining = 248, calls inlined = 233, statements flattened = 6272 [2023-11-24 23:59:19,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:19,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:19,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:19,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:19,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:19,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:19,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:19,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:19,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (1/1) ... [2023-11-24 23:59:19,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:19,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:19,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:19,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e14cbec-96d0-487f-b8a8-7f68f12bc265/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:59:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:59:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:59:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:59:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:59:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:59:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:59:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:59:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-24 23:59:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-24 23:59:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-24 23:59:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-24 23:59:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:59:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:59:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:59:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:59:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-24 23:59:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-24 23:59:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-24 23:59:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-24 23:59:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-24 23:59:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-24 23:59:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:59:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:59:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-24 23:59:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-24 23:59:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-24 23:59:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-24 23:59:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:59:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:59:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-24 23:59:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-24 23:59:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:59:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:59:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:59:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:59:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-24 23:59:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-24 23:59:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:59:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:59:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:59:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-24 23:59:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-24 23:59:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:59:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:59:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-24 23:59:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-24 23:59:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:59:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:59:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-24 23:59:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-24 23:59:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:59:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-24 23:59:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-24 23:59:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:59:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:59:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-24 23:59:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-24 23:59:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:59:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:59:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:59:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:59:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:59:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:59:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-24 23:59:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-24 23:59:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:59:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:59:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-24 23:59:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-24 23:59:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-24 23:59:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-24 23:59:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:59:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:59:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-24 23:59:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-24 23:59:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-24 23:59:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-24 23:59:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:59:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-24 23:59:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-24 23:59:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-24 23:59:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-24 23:59:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-24 23:59:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-24 23:59:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:59:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:59:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-24 23:59:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-24 23:59:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:59:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:59:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:59:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:59:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:59:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-24 23:59:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-24 23:59:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:59:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:59:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:59:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:59:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:59:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:59:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-24 23:59:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-24 23:59:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-24 23:59:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-24 23:59:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:59:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:59:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-24 23:59:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-24 23:59:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:59:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:59:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:59:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:59:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-24 23:59:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-24 23:59:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-24 23:59:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-24 23:59:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:59:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:59:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-24 23:59:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-24 23:59:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-24 23:59:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-24 23:59:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-24 23:59:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-24 23:59:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:59:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:59:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-24 23:59:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-24 23:59:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-24 23:59:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-24 23:59:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-24 23:59:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-24 23:59:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-24 23:59:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-24 23:59:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-24 23:59:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-24 23:59:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-24 23:59:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-24 23:59:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-24 23:59:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-24 23:59:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-24 23:59:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-24 23:59:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:59:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:59:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-24 23:59:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-24 23:59:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:59:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-24 23:59:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-24 23:59:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-24 23:59:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-24 23:59:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:59:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-24 23:59:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-24 23:59:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-24 23:59:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:59:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-24 23:59:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-24 23:59:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-24 23:59:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-24 23:59:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-24 23:59:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-24 23:59:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-24 23:59:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-24 23:59:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-24 23:59:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-24 23:59:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-24 23:59:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-24 23:59:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:59:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:59:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-24 23:59:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-24 23:59:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-24 23:59:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-24 23:59:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:59:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:59:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-24 23:59:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-24 23:59:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:59:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:59:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-24 23:59:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-24 23:59:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:59:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:59:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:59:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:59:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-24 23:59:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-24 23:59:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:59:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:59:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:59:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:59:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-24 23:59:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-24 23:59:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-24 23:59:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-24 23:59:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-24 23:59:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-24 23:59:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-24 23:59:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-24 23:59:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:59:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:59:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-24 23:59:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-24 23:59:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:59:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:59:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-24 23:59:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-24 23:59:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-24 23:59:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-24 23:59:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:59:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:59:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:59:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-24 23:59:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-24 23:59:20,817 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:20,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:20,907 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:59:30,028 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:32,446 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:32,446 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:59:32,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:32 BoogieIcfgContainer [2023-11-24 23:59:32,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:32,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:32,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:32,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:32,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:59:14" (1/3) ... [2023-11-24 23:59:32,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf18dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:32, skipping insertion in model container [2023-11-24 23:59:32,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:18" (2/3) ... [2023-11-24 23:59:32,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf18dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:32, skipping insertion in model container [2023-11-24 23:59:32,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:32" (3/3) ... [2023-11-24 23:59:32,464 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-24 23:59:32,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:32,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:32,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:32,585 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;@222ab643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:32,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 1536 states, 917 states have (on average 1.2595419847328244) internal successors, (1155), 941 states have internal predecessors, (1155), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-24 23:59:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:59:32,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:32,610 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:32,611 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] === [2023-11-24 23:59:32,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash -843342380, now seen corresponding path program 1 times [2023-11-24 23:59:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:32,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042472332] [2023-11-24 23:59:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 23:59:33,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:33,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042472332] [2023-11-24 23:59:33,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042472332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:33,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:33,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207695984] [2023-11-24 23:59:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:33,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:33,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:33,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:33,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:33,957 INFO L87 Difference]: Start difference. First operand has 1536 states, 917 states have (on average 1.2595419847328244) internal successors, (1155), 941 states have internal predecessors, (1155), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:59:38,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:41,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:43,570 INFO L93 Difference]: Finished difference Result 1552 states and 2196 transitions. [2023-11-24 23:59:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:43,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2023-11-24 23:59:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:43,626 INFO L225 Difference]: With dead ends: 1552 [2023-11-24 23:59:43,627 INFO L226 Difference]: Without dead ends: 1528 [2023-11-24 23:59:43,634 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 [2023-11-24 23:59:43,638 INFO L413 NwaCegarLoop]: 1889 mSDtfsCounter, 2160 mSDsluCounter, 3772 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 5661 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:43,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 5661 Invalid, 844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-24 23:59:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2023-11-24 23:59:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1528. [2023-11-24 23:59:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 916 states have (on average 1.2532751091703056) internal successors, (1148), 936 states have internal predecessors, (1148), 505 states have call successors, (505), 107 states have call predecessors, (505), 106 states have return successors, (502), 497 states have call predecessors, (502), 502 states have call successors, (502) [2023-11-24 23:59:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 2155 transitions. [2023-11-24 23:59:43,912 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 2155 transitions. Word has length 35 [2023-11-24 23:59:43,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:43,913 INFO L495 AbstractCegarLoop]: Abstraction has 1528 states and 2155 transitions. [2023-11-24 23:59:43,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:59:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 2155 transitions. [2023-11-24 23:59:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 23:59:43,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:43,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:43,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:59:43,918 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] === [2023-11-24 23:59:43,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:43,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1077109976, now seen corresponding path program 1 times [2023-11-24 23:59:43,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:43,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509501693] [2023-11-24 23:59:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 23:59:44,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509501693] [2023-11-24 23:59:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509501693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:44,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:44,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140822499] [2023-11-24 23:59:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:44,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:44,613 INFO L87 Difference]: Start difference. First operand 1528 states and 2155 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-24 23:59:47,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:52,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:55,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:00:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:01,117 INFO L93 Difference]: Finished difference Result 2916 states and 4137 transitions. [2023-11-25 00:00:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:00:01,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2023-11-25 00:00:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:01,146 INFO L225 Difference]: With dead ends: 2916 [2023-11-25 00:00:01,147 INFO L226 Difference]: Without dead ends: 2914 [2023-11-25 00:00:01,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:00:01,155 INFO L413 NwaCegarLoop]: 2217 mSDtfsCounter, 2017 mSDsluCounter, 6225 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 8442 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:01,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 8442 Invalid, 1285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2023-11-25 00:00:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2023-11-25 00:00:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2890. [2023-11-25 00:00:01,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 1731 states have (on average 1.2512998266897748) internal successors, (2166), 1772 states have internal predecessors, (2166), 951 states have call successors, (951), 209 states have call predecessors, (951), 207 states have return successors, (987), 932 states have call predecessors, (987), 945 states have call successors, (987) [2023-11-25 00:00:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4104 transitions. [2023-11-25 00:00:01,424 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4104 transitions. Word has length 41 [2023-11-25 00:00:01,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:01,425 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 4104 transitions. [2023-11-25 00:00:01,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-25 00:00:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4104 transitions. [2023-11-25 00:00:01,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-25 00:00:01,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:01,435 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:01,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:00:01,435 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] === [2023-11-25 00:00:01,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:01,436 INFO L85 PathProgramCache]: Analyzing trace with hash 277034932, now seen corresponding path program 1 times [2023-11-25 00:00:01,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:01,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624786938] [2023-11-25 00:00:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-25 00:00:01,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:01,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624786938] [2023-11-25 00:00:01,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624786938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:01,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:00:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494736181] [2023-11-25 00:00:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:01,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:00:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:01,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:00:01,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:00:01,977 INFO L87 Difference]: Start difference. First operand 2890 states and 4104 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)