./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:16,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:16,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:56:16,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:16,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:16,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:16,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:16,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:16,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:16,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:16,196 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:16,197 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:16,198 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:16,200 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:56:16,200 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:16,201 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:16,201 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:56:16,202 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:56:16,202 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:16,203 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:56:16,203 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:56:16,204 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:56:16,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:16,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:16,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:16,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:16,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:16,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:16,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:16,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:16,210 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:16,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:16,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:16,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:16,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:16,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:16,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:16,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:16,213 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:56:16,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:56:16,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:16,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:16,215 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:16,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:16,216 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_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc [2023-11-24 23:56:16,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:16,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:16,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:16,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:16,582 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:16,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2023-11-24 23:56:19,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:20,494 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:20,495 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2023-11-24 23:56:20,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/data/237a81cd9/8eaa89538a5147ad84755e3d5d2a9ca1/FLAGb2e6ad245 [2023-11-24 23:56:20,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/data/237a81cd9/8eaa89538a5147ad84755e3d5d2a9ca1 [2023-11-24 23:56:20,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:20,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:20,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:20,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:20,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:20,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd2aa42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20, skipping insertion in model container [2023-11-24 23:56:20,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,850 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:23,918 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_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2023-11-24 23:56:23,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:24,035 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:24,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4931] [2023-11-24 23:56:24,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4938] [2023-11-24 23:56:24,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4945-4946] [2023-11-24 23:56:24,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [4959-4960] [2023-11-24 23:56:24,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4979] [2023-11-24 23:56:24,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4981] [2023-11-24 23:56:24,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4983] [2023-11-24 23:56:24,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4986] [2023-11-24 23:56:24,216 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 *)"/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (12UL)); [5024-5025] [2023-11-24 23:56:24,217 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.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5030-5032] [2023-11-24 23:56:24,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5147] [2023-11-24 23:56:24,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5154] [2023-11-24 23:56:24,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5161] [2023-11-24 23:56:24,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5168] [2023-11-24 23:56:24,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5175] [2023-11-24 23:56:24,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5182] [2023-11-24 23:56:24,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (idle_mode): "ebx"); [9668] [2023-11-24 23:56:24,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (idle_mode): "ebx"); [9670] [2023-11-24 23:56:24,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (idle_mode): "ebx"); [9673] [2023-11-24 23:56:24,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (idle_mode): "ebx"); [9675] [2023-11-24 23:56:24,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (idle_mode): "ebx"); [9678] [2023-11-24 23:56:24,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (mask_ptr)); [9921] [2023-11-24 23:56:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (mask_ptr)); [9923] [2023-11-24 23:56:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (mask_ptr)); [9926] [2023-11-24 23:56:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (mask_ptr)); [9928] [2023-11-24 23:56:24,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (mask_ptr)); [9931] [2023-11-24 23:56:24,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [10006] [2023-11-24 23:56:24,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [10012] [2023-11-24 23:56:24,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [10018] [2023-11-24 23:56:24,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [10025] [2023-11-24 23:56:24,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [10066] [2023-11-24 23:56:24,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [10072] [2023-11-24 23:56:24,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [10078] [2023-11-24 23:56:24,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [10085] [2023-11-24 23:56:24,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [10197] [2023-11-24 23:56:24,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [10203] [2023-11-24 23:56:24,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [10209] [2023-11-24 23:56:24,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [10216] [2023-11-24 23:56:24,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [10256-10257] [2023-11-24 23:56:24,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [10259-10260] [2023-11-24 23:56:24,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [10263-10264] [2023-11-24 23:56:24,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [10266-10267] [2023-11-24 23:56:24,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [10270-10271] [2023-11-24 23:56:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (if_mode): "ebx"); [10302] [2023-11-24 23:56:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (if_mode): "ebx"); [10304] [2023-11-24 23:56:24,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (if_mode): "ebx"); [10307] [2023-11-24 23:56:24,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (if_mode): "ebx"); [10309] [2023-11-24 23:56:24,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (if_mode): "ebx"); [10312] [2023-11-24 23:56:24,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (xsync): "ebx"); [10374] [2023-11-24 23:56:24,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (xsync): "ebx"); [10376] [2023-11-24 23:56:24,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (xsync): "ebx"); [10379] [2023-11-24 23:56:24,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (xsync): "ebx"); [10381] [2023-11-24 23:56:24,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (xsync): "ebx"); [10384] [2023-11-24 23:56:24,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (xctrl): "ebx"); [10436] [2023-11-24 23:56:24,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (xctrl): "ebx"); [10438] [2023-11-24 23:56:24,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (xctrl): "ebx"); [10441] [2023-11-24 23:56:24,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (xctrl): "ebx"); [10443] [2023-11-24 23:56:24,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (xctrl): "ebx"); [10446] [2023-11-24 23:56:24,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [10594] [2023-11-24 23:56:24,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [10600] [2023-11-24 23:56:24,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [10606] [2023-11-24 23:56:24,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [10613] [2023-11-24 23:56:24,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [10657] [2023-11-24 23:56:24,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [10663] [2023-11-24 23:56:24,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [10669] [2023-11-24 23:56:24,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [10676] [2023-11-24 23:56:24,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [10884] [2023-11-24 23:56:24,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [10890] [2023-11-24 23:56:24,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [10896] [2023-11-24 23:56:24,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [10903] [2023-11-24 23:56:24,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [10942] [2023-11-24 23:56:24,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [10948] [2023-11-24 23:56:24,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [10954] [2023-11-24 23:56:24,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [10961] [2023-11-24 23:56:24,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [11039] [2023-11-24 23:56:24,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [11045] [2023-11-24 23:56:24,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [11051] [2023-11-24 23:56:24,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [11058] [2023-11-24 23:56:24,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [11304] [2023-11-24 23:56:24,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [11310] [2023-11-24 23:56:24,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [11316] [2023-11-24 23:56:24,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [11323] [2023-11-24 23:56:24,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [11394] [2023-11-24 23:56:24,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [11400] [2023-11-24 23:56:24,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [11406] [2023-11-24 23:56:24,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [11413] [2023-11-24 23:56:24,793 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_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2023-11-24 23:56:24,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:25,091 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:25,091 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:25,091 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:25,091 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:25,091 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:25,100 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:25,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25 WrapperNode [2023-11-24 23:56:25,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:25,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:25,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:25,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:25,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:25,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:25,637 INFO L138 Inliner]: procedures = 343, calls = 3676, calls flagged for inlining = 192, calls inlined = 173, statements flattened = 10323 [2023-11-24 23:56:25,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:25,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:25,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:25,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:25,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:25,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:25,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:25,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:26,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:26,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:26,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:26,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (1/1) ... [2023-11-24 23:56:26,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:26,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:26,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:26,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2aa1c91-e46f-4ba4-8f58-a27e5b91e00c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-11-24 23:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-24 23:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-24 23:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:56:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2023-11-24 23:56:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2023-11-24 23:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:56:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2023-11-24 23:56:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2023-11-24 23:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-24 23:56:26,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-24 23:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2023-11-24 23:56:26,263 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2023-11-24 23:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:56:26,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2023-11-24 23:56:26,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2023-11-24 23:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-24 23:56:26,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-24 23:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-24 23:56:26,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-24 23:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:56:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:56:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:56:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure free_bufs [2023-11-24 23:56:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bufs [2023-11-24 23:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-24 23:56:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-24 23:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2023-11-24 23:56:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2023-11-24 23:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-24 23:56:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-24 23:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-24 23:56:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-24 23:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:56:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2023-11-24 23:56:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2023-11-24 23:56:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rbufs [2023-11-24 23:56:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rbufs [2023-11-24 23:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2023-11-24 23:56:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2023-11-24 23:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-24 23:56:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-24 23:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:56:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-24 23:56:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2023-11-24 23:56:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2023-11-24 23:56:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-24 23:56:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-24 23:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:56:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure async_mode [2023-11-24 23:56:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mode [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2023-11-24 23:56:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-24 23:56:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:56:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-24 23:56:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-24 23:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-24 23:56:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-24 23:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-11-24 23:56:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-11-24 23:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:56:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2023-11-24 23:56:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2023-11-24 23:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:56:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-24 23:56:26,273 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure update_tx_timer [2023-11-24 23:56:26,273 INFO L138 BoogieDeclarations]: Found implementation of procedure update_tx_timer [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bufs [2023-11-24 23:56:26,273 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bufs [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-24 23:56:26,273 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-24 23:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure msc_set_vcr [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure msc_set_vcr [2023-11-24 23:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure isr_txeom [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_txeom [2023-11-24 23:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure setup_timer_key [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_timer_key [2023-11-24 23:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-24 23:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_reset [2023-11-24 23:56:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_reset [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2023-11-24 23:56:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2023-11-24 23:56:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure slgt_cleanup [2023-11-24 23:56:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure slgt_cleanup [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:56:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:56:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-24 23:56:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-24 23:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2023-11-24 23:56:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2023-11-24 23:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-24 23:56:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-24 23:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:56:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2023-11-24 23:56:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2023-11-24 23:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:56:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:56:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load [2023-11-24 23:56:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load [2023-11-24 23:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg32 [2023-11-24 23:56:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg32 [2023-11-24 23:56:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_done [2023-11-24 23:56:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_done [2023-11-24 23:56:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:56:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:56:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:56:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:56:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:56:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2023-11-24 23:56:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2023-11-24 23:56:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg32 [2023-11-24 23:56:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg32 [2023-11-24 23:56:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure isr_rxdata [2023-11-24 23:56:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_rxdata [2023-11-24 23:56:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2023-11-24 23:56:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2023-11-24 23:56:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure tbuf_bytes [2023-11-24 23:56:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tbuf_bytes [2023-11-24 23:56:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:56:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-11-24 23:56:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-11-24 23:56:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-24 23:56:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-24 23:56:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-24 23:56:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-24 23:56:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-24 23:56:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg16 [2023-11-24 23:56:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg16 [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2023-11-24 23:56:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-24 23:56:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-24 23:56:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg16 [2023-11-24 23:56:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg16 [2023-11-24 23:56:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-24 23:56:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-24 23:56:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure sync_mode [2023-11-24 23:56:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_mode [2023-11-24 23:56:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2023-11-24 23:56:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2023-11-24 23:56:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2023-11-24 23:56:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2023-11-24 23:56:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:56:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2023-11-24 23:56:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:56:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure free_tmp_rbuf [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tmp_rbuf [2023-11-24 23:56:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-24 23:56:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure tdma_reset [2023-11-24 23:56:26,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tdma_reset [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2023-11-24 23:56:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:56:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2023-11-24 23:56:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2023-11-24 23:56:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2023-11-24 23:56:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg8 [2023-11-24 23:56:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg8 [2023-11-24 23:56:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2023-11-24 23:56:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2023-11-24 23:56:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:27,437 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:27,447 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:27,853 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:27,984 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2023-11-24 23:56:27,984 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false; [2023-11-24 23:56:28,144 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-24 23:56:28,145 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-24 23:56:29,079 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:29,477 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2023-11-24 23:56:29,477 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2023-11-24 23:56:29,894 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:29,901 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:30,379 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume !false; [2023-11-24 23:56:30,379 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##425: assume false; [2023-11-24 23:56:30,379 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2023-11-24 23:56:30,380 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2023-11-24 23:56:30,810 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:44,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume false; [2023-11-24 23:56:44,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##406: assume !false; [2023-11-24 23:56:44,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##429: assume false; [2023-11-24 23:56:44,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##430: assume !false; [2023-11-24 23:56:44,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##441: assume false; [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##442: assume !false; [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940: SUMMARY for call modem_input_wait_#t~ret1637#1.base, modem_input_wait_#t~ret1637#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940-1: modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset := modem_input_wait_#t~ret1637#1.base, modem_input_wait_#t~ret1637#1.offset;havoc modem_input_wait_#t~ret1637#1.base, modem_input_wait_#t~ret1637#1.offset;modem_input_wait_~__ptr___3~1#1.base, modem_input_wait_~__ptr___3~1#1.offset := modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset; [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: SUMMARY for call modem_input_wait_#t~ret1606#1.base, modem_input_wait_#t~ret1606#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882-1: modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset := modem_input_wait_#t~ret1606#1.base, modem_input_wait_#t~ret1606#1.offset;havoc modem_input_wait_#t~ret1606#1.base, modem_input_wait_#t~ret1606#1.offset;modem_input_wait_~__ptr~3#1.base, modem_input_wait_~__ptr~3#1.offset := modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset; [2023-11-24 23:56:44,354 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##492: assume !false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##491: assume false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume !false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##222: assume !false; [2023-11-24 23:56:44,355 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##469: assume !false; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##468: assume false; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037-1: modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset := modem_input_wait_#t~ret1684#1.base, modem_input_wait_#t~ret1684#1.offset;havoc modem_input_wait_#t~ret1684#1.base, modem_input_wait_#t~ret1684#1.offset;modem_input_wait_~__ptr___7~1#1.base, modem_input_wait_~__ptr___7~1#1.offset := modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037: SUMMARY for call modem_input_wait_#t~ret1684#1.base, modem_input_wait_#t~ret1684#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##561: assume !false; [2023-11-24 23:56:44,356 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##560: assume false; [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655-1: remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset := remove_cond_wait_#t~ret1536#1.base, remove_cond_wait_#t~ret1536#1.offset;havoc remove_cond_wait_#t~ret1536#1.base, remove_cond_wait_#t~ret1536#1.offset;remove_cond_wait_~__ptr~2#1.base, remove_cond_wait_~__ptr~2#1.offset := remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset; [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655: SUMMARY for call remove_cond_wait_#t~ret1536#1.base, remove_cond_wait_#t~ret1536#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195: SUMMARY for call wait_mgsl_event_#t~ret1451#1.base, wait_mgsl_event_#t~ret1451#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195-1: wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset := wait_mgsl_event_#t~ret1451#1.base, wait_mgsl_event_#t~ret1451#1.offset;havoc wait_mgsl_event_#t~ret1451#1.base, wait_mgsl_event_#t~ret1451#1.offset;wait_mgsl_event_~__ptr___7~0#1.base, wait_mgsl_event_~__ptr___7~0#1.offset := wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset; [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592: SUMMARY for call add_cond_wait_#t~ret1531#1.base, add_cond_wait_#t~ret1531#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592-1: add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset := add_cond_wait_#t~ret1531#1.base, add_cond_wait_#t~ret1531#1.offset;havoc add_cond_wait_#t~ret1531#1.base, add_cond_wait_#t~ret1531#1.offset;add_cond_wait_~__ptr~1#1.base, add_cond_wait_~__ptr~1#1.offset := add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset; [2023-11-24 23:56:44,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064: SUMMARY for call wait_mgsl_event_#t~ret1375#1.base, wait_mgsl_event_#t~ret1375#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064-1: wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset := wait_mgsl_event_#t~ret1375#1.base, wait_mgsl_event_#t~ret1375#1.offset;havoc wait_mgsl_event_#t~ret1375#1.base, wait_mgsl_event_#t~ret1375#1.offset;wait_mgsl_event_~__ptr___3~0#1.base, wait_mgsl_event_~__ptr___3~0#1.offset := wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##193: assume !false; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume false; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004: SUMMARY for call wait_mgsl_event_#t~ret1336#1.base, wait_mgsl_event_#t~ret1336#1.offset := get_current(); srcloc: null [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004-1: wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset := wait_mgsl_event_#t~ret1336#1.base, wait_mgsl_event_#t~ret1336#1.offset;havoc wait_mgsl_event_#t~ret1336#1.base, wait_mgsl_event_#t~ret1336#1.offset;wait_mgsl_event_~__ptr~0#1.base, wait_mgsl_event_~__ptr~0#1.offset := wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset; [2023-11-24 23:56:44,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##397: assume false; [2023-11-24 23:56:44,359 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##398: assume !false; [2023-11-24 23:56:44,359 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume !false; [2023-11-24 23:56:44,359 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume false; [2023-11-24 23:56:44,359 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume !false; [2023-11-24 23:56:44,359 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume false; [2023-11-24 23:56:44,788 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:44,792 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:44,805 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:44,806 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:44,807 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:56:56,882 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume false; [2023-11-24 23:56:56,882 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392: SUMMARY for call block_til_ready_#t~ret1769#1.base, block_til_ready_#t~ret1769#1.offset := get_current(); srcloc: null [2023-11-24 23:56:56,882 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392-1: block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset := block_til_ready_#t~ret1769#1.base, block_til_ready_#t~ret1769#1.offset;havoc block_til_ready_#t~ret1769#1.base, block_til_ready_#t~ret1769#1.offset;block_til_ready_~__ptr___3~2#1.base, block_til_ready_~__ptr___3~2#1.offset := block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset; [2023-11-24 23:56:56,882 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume !false;call ULTIMATE.dealloc(hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset);havoc hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##342: assume false; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##343: assume !false; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume false; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##365: assume !false; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##532: assume !false; [2023-11-24 23:56:56,883 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##531: assume false; [2023-11-24 23:56:56,884 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2023-11-24 23:56:56,884 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2023-11-24 23:56:56,884 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##568: assume !false; [2023-11-24 23:56:56,884 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##567: assume false; [2023-11-24 23:56:56,885 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302-1: block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset := block_til_ready_#t~ret1752#1.base, block_til_ready_#t~ret1752#1.offset;havoc block_til_ready_#t~ret1752#1.base, block_til_ready_#t~ret1752#1.offset;block_til_ready_~__ptr~4#1.base, block_til_ready_~__ptr~4#1.offset := block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset; [2023-11-24 23:56:56,885 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302: SUMMARY for call block_til_ready_#t~ret1752#1.base, block_til_ready_#t~ret1752#1.offset := get_current(); srcloc: null [2023-11-24 23:56:56,885 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume !false; [2023-11-24 23:56:56,885 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume false; [2023-11-24 23:56:57,349 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:04,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:04,792 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-11-24 23:57:04,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:04 BoogieIcfgContainer [2023-11-24 23:57:04,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:04,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:04,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:04,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:04,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:20" (1/3) ... [2023-11-24 23:57:04,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581728e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:04, skipping insertion in model container [2023-11-24 23:57:04,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:25" (2/3) ... [2023-11-24 23:57:04,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581728e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:04, skipping insertion in model container [2023-11-24 23:57:04,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:04" (3/3) ... [2023-11-24 23:57:04,813 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2023-11-24 23:57:04,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:04,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:57:04,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:04,977 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;@36f0aefc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:04,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:57:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 2347 states, 1523 states have (on average 1.3900196979645436) internal successors, (2117), 1588 states have internal predecessors, (2117), 733 states have call successors, (733), 99 states have call predecessors, (733), 99 states have return successors, (733), 715 states have call predecessors, (733), 733 states have call successors, (733) [2023-11-24 23:57:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:57:05,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:05,013 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:05,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:57:05,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash -709857909, now seen corresponding path program 1 times [2023-11-24 23:57:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:05,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512215504] [2023-11-24 23:57:05,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:57:05,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:05,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512215504] [2023-11-24 23:57:05,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512215504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:05,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:05,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:57:05,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220901366] [2023-11-24 23:57:05,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:05,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:05,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:05,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:05,996 INFO L87 Difference]: Start difference. First operand has 2347 states, 1523 states have (on average 1.3900196979645436) internal successors, (2117), 1588 states have internal predecessors, (2117), 733 states have call successors, (733), 99 states have call predecessors, (733), 99 states have return successors, (733), 715 states have call predecessors, (733), 733 states have call successors, (733) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-24 23:57:08,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []