./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ --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 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:49,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:49,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:14:49,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:49,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:49,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:49,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:49,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:49,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:49,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:49,328 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:49,328 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:49,329 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:49,330 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:14:49,330 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:49,331 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:49,332 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:14:49,332 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:14:49,333 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:49,334 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:14:49,334 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:14:49,338 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:14:49,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:49,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:49,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:14:49,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:49,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:49,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:49,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:49,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:49,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:49,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:49,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:49,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:49,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:49,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:49,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:49,346 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:14:49,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:14:49,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:49,347 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:49,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:49,348 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2023-11-19 05:14:49,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:49,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:49,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:49,843 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:49,844 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:49,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2023-11-19 05:14:53,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:54,257 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:54,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2023-11-19 05:14:54,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/data/faea45e20/ba30444c32c046e396c5043c6f045603/FLAG0f68b6d09 [2023-11-19 05:14:54,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/data/faea45e20/ba30444c32c046e396c5043c6f045603 [2023-11-19 05:14:54,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:54,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:54,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:54,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:54,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:54,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:54" (1/1) ... [2023-11-19 05:14:54,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6722ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:54, skipping insertion in model container [2023-11-19 05:14:54,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:54" (1/1) ... [2023-11-19 05:14:54,632 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:59,216 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2023-11-19 05:14:59,222 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2023-11-19 05:14:59,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:59,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:59,446 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"); [6124] [2023-11-19 05:14:59,505 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)); [6131] [2023-11-19 05:14:59,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6138] [2023-11-19 05:14:59,510 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6242-6243] [2023-11-19 05:14:59,510 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"); [6248-6250] [2023-11-19 05:14:59,511 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/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [6275-6276] [2023-11-19 05:14:59,511 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"); [6281-6283] [2023-11-19 05:14:59,512 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/dfaa16b/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [6307-6308] [2023-11-19 05:14:59,512 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"); [6313-6315] [2023-11-19 05:14:59,513 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; incl %0": "+m" (v->counter)); [6350] [2023-11-19 05:14:59,519 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/mm.h"), "i" (488), "i" (12UL)); [6550-6551] [2023-11-19 05:14:59,536 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)); [6934-6935] [2023-11-19 05:14:59,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6941] [2023-11-19 05:14:59,569 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/xen-netfront.c"), "i" (317), "i" (12UL)); [7633-7634] [2023-11-19 05:14:59,570 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/xen-netfront.c"), "i" (321), "i" (12UL)); [7647-7648] [2023-11-19 05:14:59,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7671] [2023-11-19 05:14:59,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7676] [2023-11-19 05:14:59,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7678] [2023-11-19 05:14:59,575 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/xen-netfront.c"), "i" (374), "i" (12UL)); [7752-7753] [2023-11-19 05:14:59,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7760] [2023-11-19 05:14:59,578 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/xen-netfront.c"), "i" (393), "i" (12UL)); [7779-7780] [2023-11-19 05:14:59,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7802] [2023-11-19 05:14:59,583 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/xen-netfront.c"), "i" (451), "i" (12UL)); [7883-7884] [2023-11-19 05:14:59,586 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/xen-netfront.c"), "i" (473), "i" (12UL)); [7924-7925] [2023-11-19 05:14:59,587 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/xen-netfront.c"), "i" (482), "i" (12UL)); [7939-7940] [2023-11-19 05:14:59,589 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/xen-netfront.c"), "i" (496), "i" (12UL)); [7965-7966] [2023-11-19 05:14:59,590 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/xen-netfront.c"), "i" (514), "i" (12UL)); [7992-7993] [2023-11-19 05:14:59,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("add %%gs:%P1, %0": "=r" (tcp_ptr__): "m" (this_cpu_off), "0" (np->stats)); [8108] [2023-11-19 05:14:59,598 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/xen-netfront.c"), "i" (599), "i" (12UL)); [8222-8223] [2023-11-19 05:14:59,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8274] [2023-11-19 05:14:59,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8276] [2023-11-19 05:14:59,608 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/xen-netfront.c"), "i" (678), "i" (12UL)); [8339-8340] [2023-11-19 05:14:59,615 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/xen-netfront.c"), "i" (775), "i" (12UL)); [8522-8523] [2023-11-19 05:14:59,621 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/xen-netfront.c"), "i" (855), "i" (12UL)); [8672-8673] [2023-11-19 05:14:59,622 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/xen-netfront.c"), "i" (858), "i" (12UL)); [8689-8690] [2023-11-19 05:14:59,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("add %%gs:%P1, %0": "=r" (tcp_ptr__): "m" (this_cpu_off), "0" (np->stats)); [8767] [2023-11-19 05:14:59,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8855] [2023-11-19 05:14:59,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8970] [2023-11-19 05:14:59,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("": "=r" (__ptr): "0" (np->stats)); [9042] [2023-11-19 05:14:59,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("": "=r" (__ptr): "0" (np->stats)); [9412] [2023-11-19 05:14:59,899 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2023-11-19 05:14:59,901 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_7ccd6efc-babe-4ae2-9e6c-a24306411354/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2023-11-19 05:14:59,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:00,230 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:00,239 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:00,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00 WrapperNode [2023-11-19 05:15:00,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:00,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:00,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:00,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:00,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:00,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:00,715 INFO L138 Inliner]: procedures = 547, calls = 2370, calls flagged for inlining = 260, calls inlined = 202, statements flattened = 5195 [2023-11-19 05:15:00,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:00,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:00,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:00,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:00,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:00,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:00,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:00,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:01,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:01,118 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:01,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:01,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (1/1) ... [2023-11-19 05:15:01,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:01,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:01,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2023-11-19 05:15:01,206 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2023-11-19 05:15:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:15:01,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:15:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-19 05:15:01,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-19 05:15:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-19 05:15:01,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-19 05:15:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:15:01,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:15:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_scanf [2023-11-19 05:15:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_scanf [2023-11-19 05:15:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2023-11-19 05:15:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2023-11-19 05:15:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2023-11-19 05:15:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2023-11-19 05:15:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 05:15:01,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 05:15:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2023-11-19 05:15:01,209 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2023-11-19 05:15:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 05:15:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 05:15:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2023-11-19 05:15:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2023-11-19 05:15:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2023-11-19 05:15:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2023-11-19 05:15:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2023-11-19 05:15:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2023-11-19 05:15:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2023-11-19 05:15:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2023-11-19 05:15:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2023-11-19 05:15:01,212 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2023-11-19 05:15:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:15:01,212 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:15:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2023-11-19 05:15:01,213 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2023-11-19 05:15:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:15:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2023-11-19 05:15:01,213 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2023-11-19 05:15:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:15:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:15:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 05:15:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 05:15:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:15:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:15:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2023-11-19 05:15:01,215 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2023-11-19 05:15:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:15:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 05:15:01,215 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 05:15:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2023-11-19 05:15:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2023-11-19 05:15:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2023-11-19 05:15:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2023-11-19 05:15:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:15:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:15:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:15:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2023-11-19 05:15:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2023-11-19 05:15:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-11-19 05:15:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-11-19 05:15:01,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 05:15:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 05:15:01,218 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 05:15:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 05:15:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:15:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:15:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:15:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2023-11-19 05:15:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2023-11-19 05:15:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:15:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:15:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:15:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:15:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:15:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:15:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:15:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2023-11-19 05:15:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2023-11-19 05:15:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:15:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:15:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2023-11-19 05:15:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2023-11-19 05:15:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:15:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:15:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2023-11-19 05:15:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2023-11-19 05:15:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2023-11-19 05:15:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2023-11-19 05:15:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 05:15:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 05:15:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2023-11-19 05:15:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2023-11-19 05:15:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-11-19 05:15:01,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-11-19 05:15:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:15:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:15:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:15:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:15:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-11-19 05:15:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-11-19 05:15:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:15:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:15:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 05:15:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 05:15:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2023-11-19 05:15:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2023-11-19 05:15:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2023-11-19 05:15:01,235 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2023-11-19 05:15:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 05:15:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 05:15:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:15:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:15:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:15:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:15:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-19 05:15:01,244 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-19 05:15:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:15:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:15:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_dev_fatal [2023-11-19 05:15:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_dev_fatal [2023-11-19 05:15:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2023-11-19 05:15:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2023-11-19 05:15:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:15:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:15:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:15:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:15:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:15:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:15:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2023-11-19 05:15:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2023-11-19 05:15:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-11-19 05:15:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-11-19 05:15:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2023-11-19 05:15:01,248 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2023-11-19 05:15:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 05:15:01,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 05:15:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:15:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:15:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2023-11-19 05:15:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2023-11-19 05:15:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2023-11-19 05:15:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2023-11-19 05:15:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:15:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:15:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:15:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:15:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-19 05:15:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-19 05:15:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2023-11-19 05:15:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2023-11-19 05:15:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 05:15:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 05:15:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:15:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_printf [2023-11-19 05:15:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_printf [2023-11-19 05:15:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2023-11-19 05:15:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2023-11-19 05:15:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2023-11-19 05:15:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2023-11-19 05:15:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2023-11-19 05:15:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2023-11-19 05:15:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2023-11-19 05:15:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2023-11-19 05:15:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:15:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-19 05:15:01,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-19 05:15:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2023-11-19 05:15:01,254 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2023-11-19 05:15:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2023-11-19 05:15:01,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2023-11-19 05:15:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:15:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:15:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:15:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-19 05:15:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-19 05:15:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2023-11-19 05:15:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2023-11-19 05:15:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2023-11-19 05:15:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2023-11-19 05:15:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:15:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:15:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:15:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:15:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2023-11-19 05:15:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2023-11-19 05:15:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2023-11-19 05:15:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2023-11-19 05:15:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 05:15:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 05:15:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2023-11-19 05:15:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2023-11-19 05:15:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2023-11-19 05:15:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2023-11-19 05:15:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2023-11-19 05:15:01,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2023-11-19 05:15:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2023-11-19 05:15:01,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2023-11-19 05:15:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:15:01,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:15:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:15:01,260 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:15:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2023-11-19 05:15:01,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2023-11-19 05:15:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2023-11-19 05:15:01,260 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2023-11-19 05:15:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:15:01,261 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:15:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:15:01,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:15:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2023-11-19 05:15:01,261 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2023-11-19 05:15:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:15:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-19 05:15:01,262 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-19 05:15:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:15:01,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:15:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2023-11-19 05:15:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2023-11-19 05:15:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 05:15:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 05:15:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2023-11-19 05:15:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2023-11-19 05:15:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2023-11-19 05:15:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2023-11-19 05:15:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 05:15:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 05:15:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2023-11-19 05:15:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2023-11-19 05:15:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2023-11-19 05:15:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2023-11-19 05:15:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2023-11-19 05:15:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2023-11-19 05:15:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 05:15:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 05:15:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-19 05:15:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-19 05:15:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:15:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:15:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2023-11-19 05:15:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2023-11-19 05:15:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2023-11-19 05:15:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2023-11-19 05:15:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:15:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:15:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:15:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 05:15:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 05:15:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 05:15:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 05:15:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2023-11-19 05:15:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2023-11-19 05:15:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2023-11-19 05:15:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2023-11-19 05:15:02,425 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:02,431 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:02,718 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:15:10,199 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:12,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:12,294 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:15:12,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:12 BoogieIcfgContainer [2023-11-19 05:15:12,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:12,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:12,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:12,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:12,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:54" (1/3) ... [2023-11-19 05:15:12,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c9d475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:12, skipping insertion in model container [2023-11-19 05:15:12,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:00" (2/3) ... [2023-11-19 05:15:12,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c9d475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:12, skipping insertion in model container [2023-11-19 05:15:12,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:12" (3/3) ... [2023-11-19 05:15:12,329 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2023-11-19 05:15:12,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:12,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:12,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:12,495 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;@396cbca3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:12,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 738 states have (on average 1.2520325203252032) internal successors, (924), 780 states have internal predecessors, (924), 461 states have call successors, (461), 120 states have call predecessors, (461), 119 states have return successors, (457), 450 states have call predecessors, (457), 457 states have call successors, (457) [2023-11-19 05:15:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 05:15:12,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:12,576 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:12,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:12,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:12,586 INFO L85 PathProgramCache]: Analyzing trace with hash -910400894, now seen corresponding path program 1 times [2023-11-19 05:15:12,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:12,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554497589] [2023-11-19 05:15:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-19 05:15:16,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:16,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554497589] [2023-11-19 05:15:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554497589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:15:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62615240] [2023-11-19 05:15:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:16,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:16,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:16,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:16,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:15:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:18,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 2706 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 05:15:18,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-19 05:15:18,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:18,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62615240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:18,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:15:18,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 12 [2023-11-19 05:15:18,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701768931] [2023-11-19 05:15:18,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:18,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 05:15:18,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 05:15:18,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:15:18,516 INFO L87 Difference]: Start difference. First operand has 1320 states, 738 states have (on average 1.2520325203252032) internal successors, (924), 780 states have internal predecessors, (924), 461 states have call successors, (461), 120 states have call predecessors, (461), 119 states have return successors, (457), 450 states have call predecessors, (457), 457 states have call successors, (457) Second operand has 10 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-19 05:15:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:25,461 INFO L93 Difference]: Finished difference Result 2628 states and 3685 transitions. [2023-11-19 05:15:25,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:15:25,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 153 [2023-11-19 05:15:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:25,506 INFO L225 Difference]: With dead ends: 2628 [2023-11-19 05:15:25,507 INFO L226 Difference]: Without dead ends: 1288 [2023-11-19 05:15:25,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:15:25,529 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 11 mSDsluCounter, 12255 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13794 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:25,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13794 Invalid, 2772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-19 05:15:25,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-11-19 05:15:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1288. [2023-11-19 05:15:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 732 states have (on average 1.2404371584699454) internal successors, (908), 770 states have internal predecessors, (908), 437 states have call successors, (437), 118 states have call predecessors, (437), 118 states have return successors, (437), 430 states have call predecessors, (437), 437 states have call successors, (437) [2023-11-19 05:15:25,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1782 transitions. [2023-11-19 05:15:25,747 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1782 transitions. Word has length 153 [2023-11-19 05:15:25,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:25,747 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1782 transitions. [2023-11-19 05:15:25,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-19 05:15:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1782 transitions. [2023-11-19 05:15:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-19 05:15:25,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:25,767 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:25,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 05:15:25,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:15:25,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:25,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:25,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1405497191, now seen corresponding path program 1 times [2023-11-19 05:15:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:25,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260322291] [2023-11-19 05:15:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:25,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-19 05:15:31,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260322291] [2023-11-19 05:15:31,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260322291] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:15:31,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164079683] [2023-11-19 05:15:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:31,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:31,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:31,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:31,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ccd6efc-babe-4ae2-9e6c-a24306411354/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:15:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:32,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 2785 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 05:15:32,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 05:15:32,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-19 05:15:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164079683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:33,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952814414] [2023-11-19 05:15:33,455 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2023-11-19 05:15:33,456 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:15:33,461 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:15:33,468 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:15:33,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs