./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 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_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/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_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/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_babd32c2-7634-404d-84f4-96f9cb305258/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_babd32c2-7634-404d-84f4-96f9cb305258/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 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:30,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:30,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:30,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:30,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:30,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:30,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:30,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:30,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:30,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:30,617 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:30,617 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:30,618 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:30,620 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:30,620 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:30,620 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:30,621 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:30,621 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:30,622 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:30,622 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:30,623 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:30,623 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:30,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:30,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:30,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:30,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:30,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:30,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:30,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:30,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:30,629 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:30,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:30,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:30,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:30,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:30,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:30,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:30,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:30,631 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:30,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:30,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:30,632 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:30,633 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:30,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:30,634 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_babd32c2-7634-404d-84f4-96f9cb305258/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb [2023-11-23 20:37:30,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:31,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:31,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:31,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:31,021 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:31,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 20:37:34,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:34,928 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:34,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 20:37:34,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/data/5186792a1/f4d8acbf3a5444008ab1aa9ff7616609/FLAG8fa706065 [2023-11-23 20:37:35,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/data/5186792a1/f4d8acbf3a5444008ab1aa9ff7616609 [2023-11-23 20:37:35,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:35,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:35,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:35,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:35,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:35,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:35" (1/1) ... [2023-11-23 20:37:35,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72db362c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:35, skipping insertion in model container [2023-11-23 20:37:35,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:35" (1/1) ... [2023-11-23 20:37:35,271 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:38,380 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_babd32c2-7634-404d-84f4-96f9cb305258/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-23 20:37:38,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:38,486 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:38,619 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] [2023-11-23 20:37:38,621 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] [2023-11-23 20:37:38,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5555] [2023-11-23 20:37:38,623 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] [2023-11-23 20:37:38,624 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] [2023-11-23 20:37:38,625 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] [2023-11-23 20:37:38,625 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] [2023-11-23 20:37:38,626 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] [2023-11-23 20:37:38,627 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] [2023-11-23 20:37:38,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5703] [2023-11-23 20:37:38,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5849] [2023-11-23 20:37:38,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5856] [2023-11-23 20:37:38,655 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] [2023-11-23 20:37:38,657 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] [2023-11-23 20:37:38,668 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] [2023-11-23 20:37:38,673 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] [2023-11-23 20:37:38,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6364] [2023-11-23 20:37:38,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7641] [2023-11-23 20:37:38,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7681] [2023-11-23 20:37:38,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7734] [2023-11-23 20:37:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7786] [2023-11-23 20:37:38,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7810] [2023-11-23 20:37:38,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7831] [2023-11-23 20:37:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7919] [2023-11-23 20:37:38,747 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] [2023-11-23 20:37:38,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7963] [2023-11-23 20:37:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7993] [2023-11-23 20:37:38,750 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] [2023-11-23 20:37:38,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8300] [2023-11-23 20:37:39,016 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_babd32c2-7634-404d-84f4-96f9cb305258/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-23 20:37:39,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:39,243 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:39,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39 WrapperNode [2023-11-23 20:37:39,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:39,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:39,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:39,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:39,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,671 INFO L138 Inliner]: procedures = 414, calls = 2226, calls flagged for inlining = 248, calls inlined = 233, statements flattened = 6198 [2023-11-23 20:37:39,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:39,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:39,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:39,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:39,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:39,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:40,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:40,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:40,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:40,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:40,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:40,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (1/1) ... [2023-11-23 20:37:40,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:40,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:40,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:40,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babd32c2-7634-404d-84f4-96f9cb305258/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:37:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:37:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 20:37:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 20:37:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:37:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:37:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-23 20:37:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-23 20:37:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 20:37:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 20:37:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:37:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:37:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 20:37:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 20:37:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-23 20:37:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-23 20:37:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-23 20:37:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-23 20:37:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-23 20:37:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-23 20:37:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:37:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:37:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-23 20:37:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-23 20:37:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 20:37:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 20:37:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:37:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:37:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-23 20:37:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-23 20:37:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 20:37:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 20:37:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:37:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:37:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-23 20:37:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-23 20:37:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:37:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:37:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-23 20:37:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-23 20:37:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:37:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:37:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-23 20:37:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-23 20:37:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:37:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:37:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 20:37:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 20:37:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:37:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-23 20:37:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-23 20:37:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:37:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:37:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-23 20:37:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-23 20:37:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:37:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:37:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:37:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:37:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:37:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-23 20:37:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-23 20:37:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:37:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:37:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 20:37:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 20:37:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-23 20:37:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-23 20:37:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:37:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:37:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-23 20:37:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-23 20:37:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-23 20:37:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-23 20:37:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-23 20:37:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-23 20:37:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-23 20:37:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-23 20:37:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 20:37:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 20:37:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:37:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:37:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-23 20:37:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-23 20:37:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 20:37:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 20:37:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:37:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:37:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:37:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:37:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 20:37:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 20:37:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-23 20:37:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-23 20:37:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-23 20:37:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-23 20:37:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:37:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:37:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-23 20:37:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-23 20:37:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:37:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:37:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:37:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:37:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-23 20:37:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-23 20:37:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-23 20:37:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-23 20:37:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 20:37:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 20:37:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-23 20:37:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-23 20:37:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-23 20:37:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-23 20:37:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-23 20:37:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-23 20:37:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:37:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:37:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-23 20:37:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-23 20:37:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-23 20:37:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-23 20:37:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-23 20:37:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-23 20:37:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-23 20:37:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-23 20:37:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-23 20:37:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-23 20:37:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-23 20:37:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-23 20:37:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-23 20:37:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-23 20:37:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 20:37:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 20:37:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 20:37:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 20:37:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-23 20:37:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-23 20:37:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-23 20:37:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-23 20:37:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 20:37:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 20:37:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 20:37:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 20:37:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-23 20:37:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-23 20:37:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-23 20:37:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-23 20:37:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-23 20:37:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-23 20:37:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-23 20:37:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-23 20:37:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:37:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:37:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-23 20:37:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-23 20:37:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-23 20:37:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-23 20:37:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 20:37:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 20:37:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-23 20:37:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-23 20:37:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:37:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:37:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-23 20:37:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-23 20:37:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-23 20:37:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-23 20:37:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:37:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:37:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-23 20:37:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-23 20:37:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:37:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:37:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 20:37:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 20:37:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 20:37:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 20:37:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:37:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:37:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-23 20:37:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-23 20:37:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 20:37:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 20:37:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:37:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:37:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:37:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:37:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-23 20:37:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-23 20:37:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 20:37:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 20:37:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-23 20:37:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-23 20:37:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-23 20:37:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-23 20:37:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-23 20:37:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-23 20:37:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 20:37:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 20:37:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-23 20:37:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-23 20:37:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:37:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:37:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-23 20:37:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-23 20:37:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 20:37:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 20:37:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:37:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:37:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 20:37:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 20:37:41,185 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:41,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:41,360 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:37:50,184 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:52,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:52,763 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:37:52,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:52 BoogieIcfgContainer [2023-11-23 20:37:52,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:52,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:52,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:52,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:52,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:35" (1/3) ... [2023-11-23 20:37:52,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305f74c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:52, skipping insertion in model container [2023-11-23 20:37:52,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:39" (2/3) ... [2023-11-23 20:37:52,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305f74c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:52, skipping insertion in model container [2023-11-23 20:37:52,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:52" (3/3) ... [2023-11-23 20:37:52,782 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-23 20:37:52,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:52,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:52,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:52,938 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;@4863311b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:52,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:52,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 1532 states, 913 states have (on average 1.2606790799561884) internal successors, (1151), 940 states have internal predecessors, (1151), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-23 20:37:52,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:37:52,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:52,977 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] [2023-11-23 20:37:52,977 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 20:37:52,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1654010777, now seen corresponding path program 1 times [2023-11-23 20:37:52,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:52,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923414567] [2023-11-23 20:37:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:52,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 20:37:54,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:54,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923414567] [2023-11-23 20:37:54,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923414567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:37:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099024468] [2023-11-23 20:37:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:54,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:54,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:54,212 INFO L87 Difference]: Start difference. First operand has 1532 states, 913 states have (on average 1.2606790799561884) internal successors, (1151), 940 states have internal predecessors, (1151), 511 states have call successors, (511), 107 states have call predecessors, (511), 106 states have return successors, (505), 500 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 20:37:58,861 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 20:38:02,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:04,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:05,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:06,159 INFO L93 Difference]: Finished difference Result 1548 states and 2192 transitions. [2023-11-23 20:38:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:38:06,163 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 [2023-11-23 20:38:06,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:06,200 INFO L225 Difference]: With dead ends: 1548 [2023-11-23 20:38:06,200 INFO L226 Difference]: Without dead ends: 1524 [2023-11-23 20:38:06,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:38:06,211 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2156 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:06,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 5649 Invalid, 844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 840 Invalid, 3 Unknown, 0 Unchecked, 11.5s Time] [2023-11-23 20:38:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2023-11-23 20:38:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2023-11-23 20:38:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 912 states have (on average 1.2543859649122806) internal successors, (1144), 935 states have internal predecessors, (1144), 505 states have call successors, (505), 107 states have call predecessors, (505), 106 states have return successors, (502), 497 states have call predecessors, (502), 502 states have call successors, (502) [2023-11-23 20:38:06,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2151 transitions. [2023-11-23 20:38:06,440 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2151 transitions. Word has length 35 [2023-11-23 20:38:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:06,441 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 2151 transitions. [2023-11-23 20:38:06,441 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) [2023-11-23 20:38:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2151 transitions. [2023-11-23 20:38:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:38:06,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:06,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:06,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:06,445 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 20:38:06,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash 697896093, now seen corresponding path program 1 times [2023-11-23 20:38:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355268856] [2023-11-23 20:38:06,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:06,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 20:38:07,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:07,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355268856] [2023-11-23 20:38:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355268856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:07,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:38:07,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697650204] [2023-11-23 20:38:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:07,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:38:07,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:07,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:38:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:38:07,097 INFO L87 Difference]: Start difference. First operand 1524 states and 2151 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 20:38:12,373 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 20:38:14,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:17,267 WARN L539 Checker$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 20:38:20,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:22,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:23,289 INFO L93 Difference]: Finished difference Result 2908 states and 4129 transitions. [2023-11-23 20:38:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:38:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2023-11-23 20:38:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:23,318 INFO L225 Difference]: With dead ends: 2908 [2023-11-23 20:38:23,318 INFO L226 Difference]: Without dead ends: 2906 [2023-11-23 20:38:23,326 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 [2023-11-23 20:38:23,327 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 2014 mSDsluCounter, 6211 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 8423 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:23,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 8423 Invalid, 1285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2023-11-23 20:38:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-11-23 20:38:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2882. [2023-11-23 20:38:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 1723 states have (on average 1.2524666279744632) internal successors, (2158), 1770 states have internal predecessors, (2158), 951 states have call successors, (951), 209 states have call predecessors, (951), 207 states have return successors, (987), 932 states have call predecessors, (987), 945 states have call successors, (987) [2023-11-23 20:38:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4096 transitions. [2023-11-23 20:38:23,582 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4096 transitions. Word has length 40 [2023-11-23 20:38:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:23,582 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 4096 transitions. [2023-11-23 20:38:23,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 20:38:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4096 transitions. [2023-11-23 20:38:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:38:23,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:23,585 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] [2023-11-23 20:38:23,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:38:23,586 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 20:38:23,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1966380519, now seen corresponding path program 1 times [2023-11-23 20:38:23,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:23,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764662358] [2023-11-23 20:38:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:38:24,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764662358] [2023-11-23 20:38:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764662358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:24,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:38:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422014838] [2023-11-23 20:38:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:24,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:38:24,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:24,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:38:24,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:38:24,081 INFO L87 Difference]: Start difference. First operand 2882 states and 4096 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)