./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 cf1a7837 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_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/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_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:52:31,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:31,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:52:31,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:31,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:31,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:31,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:31,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:31,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:31,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:31,676 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:31,677 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:31,677 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:31,678 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:31,678 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:31,679 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:31,679 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:31,680 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:31,680 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:31,681 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:31,682 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:31,682 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:31,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:31,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:31,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:31,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:31,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:31,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:31,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:31,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:31,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:31,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:31,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:31,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:31,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:31,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:31,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:31,691 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:31,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:31,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:31,692 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:31,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:31,693 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_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2c6724f5301da85e20fbddd1914030623487cb494f00194a53042f01a1dafb [2023-11-12 00:52:32,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:32,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:32,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:32,060 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:32,060 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:32,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:52:35,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:35,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:35,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:52:35,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/data/7777a1ebc/b3e317a1b9604db594c83c2248d9a885/FLAG268ca3cd8 [2023-11-12 00:52:35,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/data/7777a1ebc/b3e317a1b9604db594c83c2248d9a885 [2023-11-12 00:52:35,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:35,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:35,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:35,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:35,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:35,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:35" (1/1) ... [2023-11-12 00:52:35,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78107b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:35, skipping insertion in model container [2023-11-12 00:52:35,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:35" (1/1) ... [2023-11-12 00:52:36,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:39,061 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_c5bb56d3-a201-42ae-8555-32655caf04e3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-12 00:52:39,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:39,182 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:39,333 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] [2023-11-12 00:52:39,335 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] [2023-11-12 00:52:39,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5555] [2023-11-12 00:52:39,339 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] [2023-11-12 00:52:39,340 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] [2023-11-12 00:52:39,341 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] [2023-11-12 00:52:39,341 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] [2023-11-12 00:52:39,343 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] [2023-11-12 00:52:39,343 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] [2023-11-12 00:52:39,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5703] [2023-11-12 00:52:39,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5849] [2023-11-12 00:52:39,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5856] [2023-11-12 00:52:39,371 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] [2023-11-12 00:52:39,374 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] [2023-11-12 00:52:39,383 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] [2023-11-12 00:52:39,389 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] [2023-11-12 00:52:39,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6364] [2023-11-12 00:52:39,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7641] [2023-11-12 00:52:39,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7681] [2023-11-12 00:52:39,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7734] [2023-11-12 00:52:39,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7786] [2023-11-12 00:52:39,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7810] [2023-11-12 00:52:39,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7831] [2023-11-12 00:52:39,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7919] [2023-11-12 00:52:39,510 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] [2023-11-12 00:52:39,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7963] [2023-11-12 00:52:39,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7993] [2023-11-12 00:52:39,514 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] [2023-11-12 00:52:39,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8300] [2023-11-12 00:52:39,745 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_c5bb56d3-a201-42ae-8555-32655caf04e3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[325844,325857] [2023-11-12 00:52:39,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:39,971 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:39,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39 WrapperNode [2023-11-12 00:52:39,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:39,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:39,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:39,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:39,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,341 INFO L138 Inliner]: procedures = 414, calls = 2226, calls flagged for inlining = 248, calls inlined = 233, statements flattened = 6198 [2023-11-12 00:52:40,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:40,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:40,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:40,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:40,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:40,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:40,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:40,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:40,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (1/1) ... [2023-11-12 00:52:40,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:40,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:40,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:40,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5bb56d3-a201-42ae-8555-32655caf04e3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:52:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:52:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:52:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:52:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:52:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:52:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:52:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:52:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-12 00:52:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-12 00:52:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-12 00:52:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-12 00:52:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:52:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:52:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:52:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:52:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-12 00:52:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-12 00:52:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-12 00:52:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-12 00:52:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:52:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:52:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:52:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:52:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-12 00:52:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-12 00:52:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:52:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:52:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:52:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:52:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-12 00:52:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-12 00:52:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:52:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:52:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:52:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:52:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-12 00:52:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-12 00:52:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:52:40,882 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:52:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:52:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-12 00:52:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-12 00:52:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:52:40,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:52:40,884 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-12 00:52:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-12 00:52:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:52:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:52:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:52:40,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:52:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:52:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-12 00:52:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-12 00:52:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:52:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:52:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-12 00:52:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-12 00:52:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:52:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:52:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:52:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:52:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:52:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:52:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-12 00:52:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-12 00:52:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:52:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:52:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-12 00:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-12 00:52:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-12 00:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-12 00:52:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:52:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-12 00:52:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-12 00:52:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-12 00:52:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-12 00:52:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:52:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-12 00:52:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-12 00:52:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-12 00:52:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-12 00:52:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-12 00:52:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-12 00:52:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:52:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:52:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-12 00:52:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-12 00:52:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:52:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:52:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:52:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:52:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:52:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 00:52:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 00:52:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:52:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:52:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:52:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:52:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:52:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:52:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-12 00:52:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-12 00:52:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-12 00:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-12 00:52:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:52:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-12 00:52:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-12 00:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:52:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-12 00:52:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-12 00:52:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-12 00:52:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-12 00:52:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:52:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:52:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-12 00:52:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-12 00:52:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-12 00:52:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-12 00:52:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-12 00:52:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-12 00:52:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:52:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:52:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-12 00:52:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-12 00:52:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-12 00:52:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-12 00:52:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-12 00:52:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-12 00:52:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-12 00:52:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-12 00:52:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-12 00:52:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-12 00:52:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-12 00:52:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-12 00:52:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-12 00:52:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-12 00:52:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-12 00:52:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-12 00:52:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:52:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:52:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-12 00:52:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-12 00:52:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:52:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-12 00:52:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-12 00:52:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-12 00:52:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-12 00:52:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:52:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:52:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-12 00:52:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-12 00:52:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:52:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-12 00:52:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-12 00:52:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-12 00:52:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-12 00:52:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:52:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-12 00:52:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-12 00:52:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:52:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:52:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-12 00:52:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-12 00:52:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-12 00:52:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-12 00:52:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:52:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:52:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-12 00:52:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-12 00:52:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:52:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:52:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-12 00:52:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-12 00:52:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-12 00:52:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-12 00:52:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:52:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:52:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-12 00:52:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-12 00:52:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:52:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:52:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 00:52:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 00:52:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:52:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:52:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:52:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:52:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-12 00:52:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-12 00:52:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:52:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:52:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:52:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:52:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:52:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:52:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:52:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-12 00:52:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-12 00:52:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:52:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:52:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-12 00:52:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-12 00:52:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-12 00:52:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-12 00:52:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-12 00:52:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-12 00:52:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:52:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:52:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-12 00:52:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-12 00:52:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:52:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:52:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-12 00:52:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-12 00:52:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-12 00:52:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-12 00:52:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:52:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:52:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-12 00:52:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-12 00:52:42,026 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:42,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:42,121 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:52:49,067 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:51,703 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:51,703 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:51,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:51 BoogieIcfgContainer [2023-11-12 00:52:51,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:51,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:51,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:51,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:51,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:35" (1/3) ... [2023-11-12 00:52:51,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283c3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:51, skipping insertion in model container [2023-11-12 00:52:51,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:39" (2/3) ... [2023-11-12 00:52:51,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283c3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:51, skipping insertion in model container [2023-11-12 00:52:51,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:51" (3/3) ... [2023-11-12 00:52:51,720 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-12 00:52:51,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:51,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:51,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:51,879 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;@4d397a12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:51,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:51,890 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) [2023-11-12 00:52:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:52:51,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:51,901 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] [2023-11-12 00:52:51,902 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] === [2023-11-12 00:52:51,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:51,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1106963475, now seen corresponding path program 1 times [2023-11-12 00:52:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932959457] [2023-11-12 00:52:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:51,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:52:52,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:52,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932959457] [2023-11-12 00:52:52,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932959457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:52,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:52,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:52:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429994382] [2023-11-12 00:52:52,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:52,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:52:52,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:53,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:52:53,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:52:53,044 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) [2023-11-12 00:52:59,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:59,904 INFO L93 Difference]: Finished difference Result 1548 states and 2192 transitions. [2023-11-12 00:52:59,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:52:59,906 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 [2023-11-12 00:52:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:59,953 INFO L225 Difference]: With dead ends: 1548 [2023-11-12 00:52:59,954 INFO L226 Difference]: Without dead ends: 1524 [2023-11-12 00:52:59,961 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 [2023-11-12 00:52:59,964 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2156 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:59,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 5649 Invalid, 844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-12 00:52:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2023-11-12 00:53:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2023-11-12 00:53:00,136 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) [2023-11-12 00:53:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2151 transitions. [2023-11-12 00:53:00,155 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2151 transitions. Word has length 35 [2023-11-12 00:53:00,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:00,156 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 2151 transitions. [2023-11-12 00:53:00,156 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) [2023-11-12 00:53:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2151 transitions. [2023-11-12 00:53:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 00:53:00,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:00,159 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] [2023-11-12 00:53:00,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:53:00,160 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] === [2023-11-12 00:53:00,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:00,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1050380503, now seen corresponding path program 1 times [2023-11-12 00:53:00,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:00,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172978207] [2023-11-12 00:53:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:00,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:53:00,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:00,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172978207] [2023-11-12 00:53:00,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172978207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:00,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:00,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:53:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391275680] [2023-11-12 00:53:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:00,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:53:00,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:53:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:53:00,849 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) [2023-11-12 00:53:07,193 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 [] [2023-11-12 00:53:12,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:53:16,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:53:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:17,134 INFO L93 Difference]: Finished difference Result 2908 states and 4129 transitions. [2023-11-12 00:53:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:53:17,135 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 [2023-11-12 00:53:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:17,164 INFO L225 Difference]: With dead ends: 2908 [2023-11-12 00:53:17,164 INFO L226 Difference]: Without dead ends: 2906 [2023-11-12 00:53:17,172 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 [2023-11-12 00:53:17,173 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 2014 mSDsluCounter, 6211 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s 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, 15.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:17,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 8423 Invalid, 1285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2023-11-12 00:53:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-11-12 00:53:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2882. [2023-11-12 00:53:17,488 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) [2023-11-12 00:53:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4096 transitions. [2023-11-12 00:53:17,518 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4096 transitions. Word has length 40 [2023-11-12 00:53:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:17,519 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 4096 transitions. [2023-11-12 00:53:17,519 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) [2023-11-12 00:53:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4096 transitions. [2023-11-12 00:53:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 00:53:17,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:17,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:17,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:53:17,529 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] === [2023-11-12 00:53:17,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -539576198, now seen corresponding path program 1 times [2023-11-12 00:53:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:17,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901306547] [2023-11-12 00:53:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:17,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:53:18,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:18,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901306547] [2023-11-12 00:53:18,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901306547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:18,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:18,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:53:18,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135208089] [2023-11-12 00:53:18,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:18,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:53:18,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:53:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:53:18,033 INFO L87 Difference]: Start difference. First operand 2882 states and 4096 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:53:24,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []