./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/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_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/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_aba6bd93-8187-4ee5-a2c3-592f82581e07/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 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:22:33,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:22:33,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:22:33,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:22:33,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:22:33,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:22:33,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:22:33,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:22:33,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:22:33,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:22:33,253 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:22:33,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:22:33,254 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:22:33,255 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:22:33,255 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:22:33,256 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:22:33,256 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:22:33,257 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:22:33,258 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:22:33,258 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:22:33,259 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:22:33,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:22:33,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:22:33,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:22:33,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:22:33,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:22:33,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:22:33,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:22:33,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:22:33,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:22:33,274 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:22:33,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:22:33,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:22:33,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:22:33,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:33,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:22:33,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:22:33,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:22:33,276 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:22:33,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:22:33,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:22:33,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:22:33,278 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:22:33,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:22:33,278 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_aba6bd93-8187-4ee5-a2c3-592f82581e07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff [2023-11-23 21:22:33,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:22:33,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:22:33,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:22:33,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:22:33,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:22:33,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-23 21:22:36,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:37,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:37,626 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-23 21:22:37,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/data/16d179988/630f1767cd404724b32638e7a4be951d/FLAG68f0ac9d8 [2023-11-23 21:22:37,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/data/16d179988/630f1767cd404724b32638e7a4be951d [2023-11-23 21:22:37,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:37,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:37,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:37,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:37,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:37,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:37" (1/1) ... [2023-11-23 21:22:37,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1597342e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:37, skipping insertion in model container [2023-11-23 21:22:37,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:37" (1/1) ... [2023-11-23 21:22:37,952 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:41,035 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_aba6bd93-8187-4ee5-a2c3-592f82581e07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2023-11-23 21:22:41,047 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_aba6bd93-8187-4ee5-a2c3-592f82581e07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2023-11-23 21:22:41,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:41,118 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:41,340 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"); [5299] [2023-11-23 21:22:41,342 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)); [5306] [2023-11-23 21:22:41,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5313] [2023-11-23 21:22:41,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5352-5353] [2023-11-23 21:22:41,345 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"); [5358-5360] [2023-11-23 21:22:41,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5385-5386] [2023-11-23 21:22:41,347 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"); [5391-5393] [2023-11-23 21:22:41,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5417-5418] [2023-11-23 21:22:41,348 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"); [5423-5425] [2023-11-23 21:22:41,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5565] [2023-11-23 21:22:41,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5573] [2023-11-23 21:22:41,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5581] [2023-11-23 21:22:41,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5588] [2023-11-23 21:22:41,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5595] [2023-11-23 21:22:41,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5602] [2023-11-23 21:22:41,360 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)); [5697-5698] [2023-11-23 21:22:41,362 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)); [5731-5732] [2023-11-23 21:22:41,371 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [5969-5970] [2023-11-23 21:22:41,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5976] [2023-11-23 21:22:41,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6673] [2023-11-23 21:22:41,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7129] [2023-11-23 21:22:41,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7721] [2023-11-23 21:22:41,598 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_aba6bd93-8187-4ee5-a2c3-592f82581e07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2023-11-23 21:22:41,599 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_aba6bd93-8187-4ee5-a2c3-592f82581e07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2023-11-23 21:22:41,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:41,917 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:41,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41 WrapperNode [2023-11-23 21:22:41,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:41,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:41,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:41,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:41,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,318 INFO L138 Inliner]: procedures = 454, calls = 1916, calls flagged for inlining = 226, calls inlined = 205, statements flattened = 5228 [2023-11-23 21:22:42,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:42,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:42,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:42,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:42,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:42,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:42,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:42,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:42,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (1/1) ... [2023-11-23 21:22:42,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:42,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:42,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:42,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:22:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:22:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2023-11-23 21:22:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2023-11-23 21:22:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:22:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:22:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:22:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:22:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2023-11-23 21:22:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2023-11-23 21:22:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:22:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:22:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:22:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:22:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_91 [2023-11-23 21:22:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_91 [2023-11-23 21:22:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:22:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:22:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 21:22:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 21:22:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:22:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:22:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:22:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:22:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:22:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:22:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:22:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:22:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:22:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:22:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:22:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:22:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:22:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:22:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-23 21:22:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-23 21:22:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:22:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:22:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:22:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:22:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:22:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 21:22:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 21:22:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2023-11-23 21:22:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2023-11-23 21:22:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:22:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:22:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2023-11-23 21:22:42,687 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2023-11-23 21:22:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:22:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2023-11-23 21:22:42,687 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2023-11-23 21:22:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:22:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:22:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2023-11-23 21:22:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2023-11-23 21:22:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:22:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2023-11-23 21:22:42,689 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2023-11-23 21:22:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:22:42,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:22:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:22:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:22:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:22:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:22:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:22:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:22:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:22:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:22:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:22:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:22:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:22:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:22:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:22:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:22:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:22:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2023-11-23 21:22:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2023-11-23 21:22:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:22:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:22:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:22:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:22:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:22:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2023-11-23 21:22:42,694 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2023-11-23 21:22:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-23 21:22:42,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-23 21:22:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:22:42,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:22:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:22:42,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:22:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:22:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:22:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:22:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 21:22:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 21:22:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:22:42,698 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:22:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2023-11-23 21:22:42,698 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2023-11-23 21:22:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:22:42,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:22:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-23 21:22:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-23 21:22:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:22:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:22:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2023-11-23 21:22:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2023-11-23 21:22:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:22:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:22:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:22:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:22:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:22:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:22:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-23 21:22:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-23 21:22:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 21:22:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 21:22:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-23 21:22:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-23 21:22:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:42,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2023-11-23 21:22:42,707 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2023-11-23 21:22:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:22:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:22:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:22:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:22:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:22:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:22:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2023-11-23 21:22:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2023-11-23 21:22:42,717 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2023-11-23 21:22:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2023-11-23 21:22:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:22:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:22:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2023-11-23 21:22:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2023-11-23 21:22:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:22:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:22:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2023-11-23 21:22:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2023-11-23 21:22:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:22:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:22:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:22:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:22:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:22:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:22:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-23 21:22:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-23 21:22:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:22:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 21:22:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 21:22:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:22:42,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:22:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:22:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_89 [2023-11-23 21:22:42,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_89 [2023-11-23 21:22:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2023-11-23 21:22:42,721 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2023-11-23 21:22:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-23 21:22:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-23 21:22:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2023-11-23 21:22:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2023-11-23 21:22:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:22:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2023-11-23 21:22:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2023-11-23 21:22:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:22:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:22:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:22:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:22:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:22:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:22:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:22:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:22:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2023-11-23 21:22:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2023-11-23 21:22:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:22:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:22:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:22:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:22:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:22:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:22:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:22:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:22:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:22:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:22:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:22:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:22:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:22:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2023-11-23 21:22:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2023-11-23 21:22:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:22:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:22:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2023-11-23 21:22:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2023-11-23 21:22:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2023-11-23 21:22:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2023-11-23 21:22:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:22:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:22:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:22:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:22:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2023-11-23 21:22:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2023-11-23 21:22:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:22:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:22:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:22:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2023-11-23 21:22:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2023-11-23 21:22:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:22:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:22:43,621 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:43,624 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:22:44,236 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:22:47,422 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:22:47,602 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:22:49,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:22:49,840 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:22:49,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:49 BoogieIcfgContainer [2023-11-23 21:22:49,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:22:49,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:22:49,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:22:49,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:22:49,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:37" (1/3) ... [2023-11-23 21:22:49,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ac92ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:49, skipping insertion in model container [2023-11-23 21:22:49,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:41" (2/3) ... [2023-11-23 21:22:49,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ac92ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:49, skipping insertion in model container [2023-11-23 21:22:49,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:49" (3/3) ... [2023-11-23 21:22:49,853 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2023-11-23 21:22:49,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:22:49,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:22:49,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:22:49,988 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;@7d6c23fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:22:49,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:22:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 1441 states, 804 states have (on average 1.2723880597014925) internal successors, (1023), 830 states have internal predecessors, (1023), 538 states have call successors, (538), 99 states have call predecessors, (538), 98 states have return successors, (533), 526 states have call predecessors, (533), 533 states have call successors, (533) [2023-11-23 21:22:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 21:22:50,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:50,061 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:50,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:50,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:50,069 INFO L85 PathProgramCache]: Analyzing trace with hash 101551014, now seen corresponding path program 1 times [2023-11-23 21:22:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:50,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908225251] [2023-11-23 21:22:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:50,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:51,110 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-23 21:22:51,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908225251] [2023-11-23 21:22:51,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908225251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:51,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:51,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368508776] [2023-11-23 21:22:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:51,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:51,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:51,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:51,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:51,176 INFO L87 Difference]: Start difference. First operand has 1441 states, 804 states have (on average 1.2723880597014925) internal successors, (1023), 830 states have internal predecessors, (1023), 538 states have call successors, (538), 99 states have call predecessors, (538), 98 states have return successors, (533), 526 states have call predecessors, (533), 533 states have call successors, (533) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 21:22:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:53,355 INFO L93 Difference]: Finished difference Result 3771 states and 5493 transitions. [2023-11-23 21:22:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 188 [2023-11-23 21:22:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:53,400 INFO L225 Difference]: With dead ends: 3771 [2023-11-23 21:22:53,400 INFO L226 Difference]: Without dead ends: 2300 [2023-11-23 21:22:53,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:53,420 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 1303 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:53,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 3555 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 21:22:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2023-11-23 21:22:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2297. [2023-11-23 21:22:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 1318 states have (on average 1.2693474962063733) internal successors, (1673), 1358 states have internal predecessors, (1673), 812 states have call successors, (812), 166 states have call predecessors, (812), 166 states have return successors, (812), 801 states have call predecessors, (812), 812 states have call successors, (812) [2023-11-23 21:22:53,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3297 transitions. [2023-11-23 21:22:53,693 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3297 transitions. Word has length 188 [2023-11-23 21:22:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:53,694 INFO L495 AbstractCegarLoop]: Abstraction has 2297 states and 3297 transitions. [2023-11-23 21:22:53,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 21:22:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3297 transitions. [2023-11-23 21:22:53,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 21:22:53,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:53,709 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:53,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:22:53,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:53,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:53,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1856728595, now seen corresponding path program 1 times [2023-11-23 21:22:53,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:53,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120724145] [2023-11-23 21:22:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:53,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-23 21:22:53,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120724145] [2023-11-23 21:22:53,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120724145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:53,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:53,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053950530] [2023-11-23 21:22:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:53,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:53,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:53,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:53,998 INFO L87 Difference]: Start difference. First operand 2297 states and 3297 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 21:22:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:56,138 INFO L93 Difference]: Finished difference Result 6045 states and 8647 transitions. [2023-11-23 21:22:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 195 [2023-11-23 21:22:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:56,181 INFO L225 Difference]: With dead ends: 6045 [2023-11-23 21:22:56,181 INFO L226 Difference]: Without dead ends: 3769 [2023-11-23 21:22:56,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:56,197 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 1699 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:56,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 3463 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 21:22:56,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2023-11-23 21:22:56,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3765. [2023-11-23 21:22:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 2157 states have (on average 1.2624014835419564) internal successors, (2723), 2227 states have internal predecessors, (2723), 1321 states have call successors, (1321), 286 states have call predecessors, (1321), 286 states have return successors, (1324), 1299 states have call predecessors, (1324), 1321 states have call successors, (1324) [2023-11-23 21:22:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 5368 transitions. [2023-11-23 21:22:56,475 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 5368 transitions. Word has length 195 [2023-11-23 21:22:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:56,476 INFO L495 AbstractCegarLoop]: Abstraction has 3765 states and 5368 transitions. [2023-11-23 21:22:56,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 21:22:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 5368 transitions. [2023-11-23 21:22:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-23 21:22:56,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:56,488 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 10, 10, 10, 10, 6, 6, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:56,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:22:56,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:56,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:56,489 INFO L85 PathProgramCache]: Analyzing trace with hash 592828402, now seen corresponding path program 1 times [2023-11-23 21:22:56,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:56,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117854583] [2023-11-23 21:22:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:56,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 21:22:57,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:57,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117854583] [2023-11-23 21:22:57,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117854583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:57,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:57,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:57,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478744369] [2023-11-23 21:22:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:57,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:57,067 INFO L87 Difference]: Start difference. First operand 3765 states and 5368 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-23 21:22:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:59,962 INFO L93 Difference]: Finished difference Result 8693 states and 12395 transitions. [2023-11-23 21:22:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:59,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 252 [2023-11-23 21:22:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:00,013 INFO L225 Difference]: With dead ends: 8693 [2023-11-23 21:23:00,013 INFO L226 Difference]: Without dead ends: 4949 [2023-11-23 21:23:00,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:00,038 INFO L413 NwaCegarLoop]: 2797 mSDtfsCounter, 1262 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 4501 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:00,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 4501 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 21:23:00,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2023-11-23 21:23:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4945. [2023-11-23 21:23:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4945 states, 2862 states have (on average 1.2662473794549267) internal successors, (3624), 2954 states have internal predecessors, (3624), 1699 states have call successors, (1699), 383 states have call predecessors, (1699), 383 states have return successors, (1702), 1671 states have call predecessors, (1702), 1699 states have call successors, (1702) [2023-11-23 21:23:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 7025 transitions. [2023-11-23 21:23:00,480 INFO L78 Accepts]: Start accepts. Automaton has 4945 states and 7025 transitions. Word has length 252 [2023-11-23 21:23:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:00,481 INFO L495 AbstractCegarLoop]: Abstraction has 4945 states and 7025 transitions. [2023-11-23 21:23:00,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-23 21:23:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4945 states and 7025 transitions. [2023-11-23 21:23:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-23 21:23:00,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:00,495 INFO L195 NwaCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 9, 9, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:00,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:00,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:00,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1020236450, now seen corresponding path program 1 times [2023-11-23 21:23:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:00,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915810341] [2023-11-23 21:23:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2023-11-23 21:23:00,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:00,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915810341] [2023-11-23 21:23:00,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915810341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:00,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:00,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:00,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101625084] [2023-11-23 21:23:00,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:00,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:00,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:00,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:00,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:00,992 INFO L87 Difference]: Start difference. First operand 4945 states and 7025 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-11-23 21:23:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:02,960 INFO L93 Difference]: Finished difference Result 9925 states and 14148 transitions. [2023-11-23 21:23:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 293 [2023-11-23 21:23:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:03,001 INFO L225 Difference]: With dead ends: 9925 [2023-11-23 21:23:03,001 INFO L226 Difference]: Without dead ends: 5001 [2023-11-23 21:23:03,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:03,028 INFO L413 NwaCegarLoop]: 1745 mSDtfsCounter, 10 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:03,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3483 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 21:23:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2023-11-23 21:23:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 4953. [2023-11-23 21:23:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 2870 states have (on average 1.2655052264808362) internal successors, (3632), 2962 states have internal predecessors, (3632), 1699 states have call successors, (1699), 383 states have call predecessors, (1699), 383 states have return successors, (1702), 1671 states have call predecessors, (1702), 1699 states have call successors, (1702) [2023-11-23 21:23:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 7033 transitions. [2023-11-23 21:23:03,369 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 7033 transitions. Word has length 293 [2023-11-23 21:23:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:03,371 INFO L495 AbstractCegarLoop]: Abstraction has 4953 states and 7033 transitions. [2023-11-23 21:23:03,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-11-23 21:23:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 7033 transitions. [2023-11-23 21:23:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-23 21:23:03,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:03,385 INFO L195 NwaCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 9, 9, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:03,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:23:03,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:03,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:03,386 INFO L85 PathProgramCache]: Analyzing trace with hash 112817743, now seen corresponding path program 1 times [2023-11-23 21:23:03,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:03,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898961783] [2023-11-23 21:23:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:03,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-11-23 21:23:03,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898961783] [2023-11-23 21:23:03,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898961783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:23:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263292282] [2023-11-23 21:23:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:03,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:23:03,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:03,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:23:03,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba6bd93-8187-4ee5-a2c3-592f82581e07/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:23:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:05,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:23:05,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2023-11-23 21:23:05,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:23:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-11-23 21:23:05,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263292282] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:23:05,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760735319] [2023-11-23 21:23:05,438 INFO L159 IcfgInterpreter]: Started Sifa with 161 locations of interest [2023-11-23 21:23:05,439 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:23:05,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:23:05,449 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:23:05,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs