./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/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 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:55:05,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:05,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:55:05,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:05,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:05,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:05,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:05,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:05,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:05,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:05,196 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:05,197 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:05,197 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:05,199 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:05,199 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:05,200 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:05,200 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:05,201 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:05,201 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:05,201 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:05,202 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:05,202 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:05,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:05,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:55:05,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:05,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:05,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:55:05,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:05,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:55:05,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:55:05,207 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:05,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:05,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:55:05,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:05,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:05,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:05,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:05,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:55:05,210 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:05,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:05,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:05,210 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:55:05,210 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:05,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:05,211 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da [2023-11-24 23:55:05,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:05,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:05,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:05,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:05,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:05,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-24 23:55:08,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:09,365 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:09,366 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-24 23:55:09,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/data/50046ad7b/ea926e5685f7419b9f850ce0de9e23cb/FLAG58dd2a54c [2023-11-24 23:55:09,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/data/50046ad7b/ea926e5685f7419b9f850ce0de9e23cb [2023-11-24 23:55:09,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:09,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:09,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:09,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:09,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:09,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:09" (1/1) ... [2023-11-24 23:55:09,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeab6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:09, skipping insertion in model container [2023-11-24 23:55:09,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:09" (1/1) ... [2023-11-24 23:55:09,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:55:13,987 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2023-11-24 23:55:14,000 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2023-11-24 23:55:14,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:14,076 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:55:14,324 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"); [7220] [2023-11-24 23:55:14,327 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)); [7227] [2023-11-24 23:55:14,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7234] [2023-11-24 23:55:14,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [7331-7332] [2023-11-24 23:55:14,331 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"); [7337-7339] [2023-11-24 23:55:14,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; addl %1,%0": "+m" (v->counter): "ir" (i)); [7379] [2023-11-24 23:55:14,334 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)); [7386] [2023-11-24 23:55:14,334 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [7414-7415] [2023-11-24 23:55:14,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7418-7419] [2023-11-24 23:55:14,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7422-7423] [2023-11-24 23:55:14,336 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7426-7427] [2023-11-24 23:55:14,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7468] [2023-11-24 23:55:14,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7471] [2023-11-24 23:55:14,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7474] [2023-11-24 23:55:14,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7477] [2023-11-24 23:55:14,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [7514] [2023-11-24 23:55:14,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [7517] [2023-11-24 23:55:14,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [7519] [2023-11-24 23:55:14,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [7524] [2023-11-24 23:55:14,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [7527] [2023-11-24 23:55:14,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [7529] [2023-11-24 23:55:14,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [7534] [2023-11-24 23:55:14,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [7537] [2023-11-24 23:55:14,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [7539] [2023-11-24 23:55:14,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [7544] [2023-11-24 23:55:14,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [7547] [2023-11-24 23:55:14,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [7549] [2023-11-24 23:55:14,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [7587] [2023-11-24 23:55:14,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [7590] [2023-11-24 23:55:14,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [7592] [2023-11-24 23:55:14,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [7597] [2023-11-24 23:55:14,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [7600] [2023-11-24 23:55:14,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [7602] [2023-11-24 23:55:14,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [7607] [2023-11-24 23:55:14,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [7610] [2023-11-24 23:55:14,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [7612] [2023-11-24 23:55:14,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [7617] [2023-11-24 23:55:14,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [7620] [2023-11-24 23:55:14,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [7622] [2023-11-24 23:55:14,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7638] [2023-11-24 23:55:14,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7764] [2023-11-24 23:55:14,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7773] [2023-11-24 23:55:14,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7998] [2023-11-24 23:55:14,375 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 *)"fs/nfs/nfs4filelayout.c"), "i" (84), "i" (12UL)); [8308-8309] [2023-11-24 23:55:14,614 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)); [12431-12432] [2023-11-24 23:55:14,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12793] [2023-11-24 23:55:14,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13947] [2023-11-24 23:55:14,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13949] [2023-11-24 23:55:14,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13986] [2023-11-24 23:55:14,775 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2023-11-24 23:55:14,776 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_d5aba280-66b5-44da-90eb-c791a2d6ddb5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2023-11-24 23:55:14,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:14,994 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:14,994 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:14,994 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:14,994 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:15,004 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:55:15,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15 WrapperNode [2023-11-24 23:55:15,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:15,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:15,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:55:15,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:55:15,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,376 INFO L138 Inliner]: procedures = 518, calls = 2190, calls flagged for inlining = 214, calls inlined = 173, statements flattened = 5915 [2023-11-24 23:55:15,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:15,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:55:15,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:55:15,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:55:15,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:55:15,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:55:15,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:55:15,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:55:15,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (1/1) ... [2023-11-24 23:55:15,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:15,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:15,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2023-11-24 23:55:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2023-11-24 23:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-24 23:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2023-11-24 23:55:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2023-11-24 23:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2023-11-24 23:55:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2023-11-24 23:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2023-11-24 23:55:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2023-11-24 23:55:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:55:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:55:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-24 23:55:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-24 23:55:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:55:15,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:55:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-24 23:55:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-24 23:55:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2023-11-24 23:55:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2023-11-24 23:55:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2023-11-24 23:55:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2023-11-24 23:55:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:55:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:55:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2023-11-24 23:55:15,812 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2023-11-24 23:55:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2023-11-24 23:55:15,812 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2023-11-24 23:55:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2023-11-24 23:55:15,813 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2023-11-24 23:55:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-24 23:55:15,813 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-24 23:55:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2023-11-24 23:55:15,814 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2023-11-24 23:55:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:55:15,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:55:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2023-11-24 23:55:15,815 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2023-11-24 23:55:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-24 23:55:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:55:15,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:55:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2023-11-24 23:55:15,816 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2023-11-24 23:55:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:55:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104 [2023-11-24 23:55:15,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104 [2023-11-24 23:55:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2023-11-24 23:55:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2023-11-24 23:55:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104___0 [2023-11-24 23:55:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104___0 [2023-11-24 23:55:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:55:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:55:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2023-11-24 23:55:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2023-11-24 23:55:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:55:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:55:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:55:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2023-11-24 23:55:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2023-11-24 23:55:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2023-11-24 23:55:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2023-11-24 23:55:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:55:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:55:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:55:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2023-11-24 23:55:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2023-11-24 23:55:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2023-11-24 23:55:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2023-11-24 23:55:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2023-11-24 23:55:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2023-11-24 23:55:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:55:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2023-11-24 23:55:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2023-11-24 23:55:15,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5aba280-66b5-44da-90eb-c791a2d6ddb5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:55:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-24 23:55:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-24 23:55:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2023-11-24 23:55:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2023-11-24 23:55:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:55:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:55:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2023-11-24 23:55:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2023-11-24 23:55:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:55:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:55:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-24 23:55:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-24 23:55:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2023-11-24 23:55:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2023-11-24 23:55:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2023-11-24 23:55:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2023-11-24 23:55:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:55:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:55:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:55:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:55:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:55:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2023-11-24 23:55:15,831 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2023-11-24 23:55:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-11-24 23:55:15,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2023-11-24 23:55:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2023-11-24 23:55:15,832 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2023-11-24 23:55:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-24 23:55:15,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-24 23:55:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:55:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2023-11-24 23:55:15,835 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2023-11-24 23:55:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2023-11-24 23:55:15,835 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2023-11-24 23:55:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:55:15,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:55:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:55:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2023-11-24 23:55:15,836 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2023-11-24 23:55:15,837 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2023-11-24 23:55:15,837 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2023-11-24 23:55:15,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:55:15,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:55:15,837 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2023-11-24 23:55:15,837 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2023-11-24 23:55:15,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:55:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:55:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-24 23:55:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-24 23:55:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-24 23:55:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-24 23:55:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:55:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:55:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2023-11-24 23:55:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2023-11-24 23:55:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2023-11-24 23:55:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2023-11-24 23:55:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:55:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:55:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2023-11-24 23:55:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2023-11-24 23:55:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:55:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:55:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:55:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:55:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:55:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:55:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:55:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:55:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2023-11-24 23:55:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2023-11-24 23:55:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2023-11-24 23:55:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2023-11-24 23:55:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2023-11-24 23:55:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2023-11-24 23:55:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2023-11-24 23:55:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2023-11-24 23:55:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2023-11-24 23:55:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2023-11-24 23:55:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2023-11-24 23:55:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2023-11-24 23:55:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2023-11-24 23:55:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2023-11-24 23:55:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2023-11-24 23:55:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2023-11-24 23:55:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2023-11-24 23:55:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2023-11-24 23:55:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2023-11-24 23:55:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2023-11-24 23:55:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-24 23:55:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-24 23:55:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2023-11-24 23:55:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2023-11-24 23:55:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2023-11-24 23:55:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2023-11-24 23:55:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2023-11-24 23:55:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2023-11-24 23:55:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2023-11-24 23:55:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2023-11-24 23:55:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-24 23:55:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-24 23:55:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-24 23:55:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-24 23:55:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2023-11-24 23:55:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2023-11-24 23:55:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2023-11-24 23:55:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2023-11-24 23:55:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:55:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-24 23:55:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-24 23:55:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2023-11-24 23:55:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2023-11-24 23:55:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2023-11-24 23:55:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2023-11-24 23:55:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2023-11-24 23:55:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2023-11-24 23:55:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:55:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2023-11-24 23:55:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2023-11-24 23:55:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2023-11-24 23:55:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2023-11-24 23:55:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:55:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2023-11-24 23:55:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2023-11-24 23:55:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:55:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:55:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2023-11-24 23:55:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2023-11-24 23:55:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:55:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:55:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-24 23:55:15,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-24 23:55:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2023-11-24 23:55:15,852 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2023-11-24 23:55:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:55:15,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:55:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2023-11-24 23:55:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2023-11-24 23:55:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:55:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:55:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2023-11-24 23:55:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2023-11-24 23:55:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2023-11-24 23:55:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2023-11-24 23:55:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-24 23:55:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-24 23:55:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2023-11-24 23:55:15,855 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2023-11-24 23:55:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2023-11-24 23:55:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2023-11-24 23:55:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2023-11-24 23:55:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2023-11-24 23:55:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:55:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:55:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:55:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:55:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2023-11-24 23:55:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2023-11-24 23:55:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:55:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2023-11-24 23:55:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2023-11-24 23:55:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2023-11-24 23:55:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2023-11-24 23:55:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:55:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:55:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2023-11-24 23:55:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2023-11-24 23:55:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-24 23:55:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-24 23:55:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-24 23:55:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_103 [2023-11-24 23:55:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_103 [2023-11-24 23:55:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-24 23:55:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-24 23:55:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2023-11-24 23:55:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2023-11-24 23:55:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:55:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:55:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2023-11-24 23:55:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2023-11-24 23:55:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:55:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:55:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2023-11-24 23:55:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2023-11-24 23:55:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2023-11-24 23:55:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2023-11-24 23:55:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2023-11-24 23:55:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2023-11-24 23:55:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2023-11-24 23:55:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2023-11-24 23:55:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:55:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:55:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:55:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2023-11-24 23:55:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2023-11-24 23:55:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:55:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:55:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2023-11-24 23:55:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2023-11-24 23:55:16,994 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:55:17,000 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:17,626 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:55:21,194 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:55:21,449 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:23,453 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:23,454 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:55:23,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:23 BoogieIcfgContainer [2023-11-24 23:55:23,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:23,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:23,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:23,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:23,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:09" (1/3) ... [2023-11-24 23:55:23,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:23, skipping insertion in model container [2023-11-24 23:55:23,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:15" (2/3) ... [2023-11-24 23:55:23,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:23, skipping insertion in model container [2023-11-24 23:55:23,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:23" (3/3) ... [2023-11-24 23:55:23,466 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-24 23:55:23,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:23,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:55:23,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:23,608 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;@30766902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:23,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:55:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 1944 states, 1159 states have (on average 1.3002588438308886) internal successors, (1507), 1204 states have internal predecessors, (1507), 659 states have call successors, (659), 126 states have call predecessors, (659), 125 states have return successors, (653), 630 states have call predecessors, (653), 653 states have call successors, (653) [2023-11-24 23:55:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-11-24 23:55:23,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:23,673 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:23,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:23,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:23,679 INFO L85 PathProgramCache]: Analyzing trace with hash -982470635, now seen corresponding path program 1 times [2023-11-24 23:55:23,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:23,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385706818] [2023-11-24 23:55:23,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:23,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-24 23:55:24,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385706818] [2023-11-24 23:55:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385706818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:24,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:24,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:24,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279744107] [2023-11-24 23:55:24,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:24,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:24,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:24,952 INFO L87 Difference]: Start difference. First operand has 1944 states, 1159 states have (on average 1.3002588438308886) internal successors, (1507), 1204 states have internal predecessors, (1507), 659 states have call successors, (659), 126 states have call predecessors, (659), 125 states have return successors, (653), 630 states have call predecessors, (653), 653 states have call successors, (653) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-24 23:55:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:27,023 INFO L93 Difference]: Finished difference Result 5623 states and 8226 transitions. [2023-11-24 23:55:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 366 [2023-11-24 23:55:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:27,090 INFO L225 Difference]: With dead ends: 5623 [2023-11-24 23:55:27,091 INFO L226 Difference]: Without dead ends: 3645 [2023-11-24 23:55:27,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:27,117 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2601 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 4955 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:27,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 4955 Invalid, 694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:55:27,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2023-11-24 23:55:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3641. [2023-11-24 23:55:27,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3641 states, 2190 states have (on average 1.3) internal successors, (2847), 2280 states have internal predecessors, (2847), 1204 states have call successors, (1204), 246 states have call predecessors, (1204), 246 states have return successors, (1204), 1156 states have call predecessors, (1204), 1204 states have call successors, (1204) [2023-11-24 23:55:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 5255 transitions. [2023-11-24 23:55:27,529 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 5255 transitions. Word has length 366 [2023-11-24 23:55:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:27,532 INFO L495 AbstractCegarLoop]: Abstraction has 3641 states and 5255 transitions. [2023-11-24 23:55:27,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-24 23:55:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 5255 transitions. [2023-11-24 23:55:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-24 23:55:27,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:27,542 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:27,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:55:27,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:27,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash 272358449, now seen corresponding path program 1 times [2023-11-24 23:55:27,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:27,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054094228] [2023-11-24 23:55:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-24 23:55:28,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:28,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054094228] [2023-11-24 23:55:28,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054094228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:28,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:28,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790126587] [2023-11-24 23:55:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:28,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:28,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:28,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:28,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:28,283 INFO L87 Difference]: Start difference. First operand 3641 states and 5255 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-24 23:55:30,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:30,302 INFO L93 Difference]: Finished difference Result 9756 states and 14010 transitions. [2023-11-24 23:55:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:30,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 367 [2023-11-24 23:55:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:30,362 INFO L225 Difference]: With dead ends: 9756 [2023-11-24 23:55:30,363 INFO L226 Difference]: Without dead ends: 6184 [2023-11-24 23:55:30,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:30,384 INFO L413 NwaCegarLoop]: 3736 mSDtfsCounter, 2517 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:30,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 6108 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:55:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6184 states. [2023-11-24 23:55:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6184 to 6180. [2023-11-24 23:55:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6180 states, 3700 states have (on average 1.2943243243243243) internal successors, (4789), 3865 states have internal predecessors, (4789), 2028 states have call successors, (2028), 451 states have call predecessors, (2028), 451 states have return successors, (2028), 1931 states have call predecessors, (2028), 2028 states have call successors, (2028) [2023-11-24 23:55:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6180 states to 6180 states and 8845 transitions. [2023-11-24 23:55:30,933 INFO L78 Accepts]: Start accepts. Automaton has 6180 states and 8845 transitions. Word has length 367 [2023-11-24 23:55:30,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:30,935 INFO L495 AbstractCegarLoop]: Abstraction has 6180 states and 8845 transitions. [2023-11-24 23:55:30,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-24 23:55:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6180 states and 8845 transitions. [2023-11-24 23:55:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-24 23:55:30,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:30,951 INFO L195 NwaCegarLoop]: trace histogram [36, 34, 34, 34, 34, 34, 34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:30,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:55:30,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:30,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:30,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2076340896, now seen corresponding path program 1 times [2023-11-24 23:55:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:30,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912101822] [2023-11-24 23:55:30,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:30,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4629 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4626 trivial. 0 not checked. [2023-11-24 23:55:31,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:31,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912101822] [2023-11-24 23:55:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912101822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:31,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:31,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:31,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434702506] [2023-11-24 23:55:31,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:31,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:31,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:31,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:31,520 INFO L87 Difference]: Start difference. First operand 6180 states and 8845 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-24 23:55:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:33,161 INFO L93 Difference]: Finished difference Result 13077 states and 18635 transitions. [2023-11-24 23:55:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 383 [2023-11-24 23:55:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:33,221 INFO L225 Difference]: With dead ends: 13077 [2023-11-24 23:55:33,222 INFO L226 Difference]: Without dead ends: 6966 [2023-11-24 23:55:33,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:33,317 INFO L413 NwaCegarLoop]: 2428 mSDtfsCounter, 1034 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 4815 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:33,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 4815 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:55:33,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6966 states. [2023-11-24 23:55:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6966 to 6964. [2023-11-24 23:55:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 4155 states have (on average 1.288086642599278) internal successors, (5352), 4347 states have internal predecessors, (5352), 2267 states have call successors, (2267), 541 states have call predecessors, (2267), 541 states have return successors, (2267), 2148 states have call predecessors, (2267), 2267 states have call successors, (2267) [2023-11-24 23:55:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 9886 transitions. [2023-11-24 23:55:33,811 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 9886 transitions. Word has length 383 [2023-11-24 23:55:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:33,812 INFO L495 AbstractCegarLoop]: Abstraction has 6964 states and 9886 transitions. [2023-11-24 23:55:33,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-24 23:55:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 9886 transitions. [2023-11-24 23:55:33,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-24 23:55:33,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:33,828 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:33,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:55:33,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:33,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:33,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1783772021, now seen corresponding path program 1 times [2023-11-24 23:55:33,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:33,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251997865] [2023-11-24 23:55:33,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:33,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4832 trivial. 0 not checked. [2023-11-24 23:55:34,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:34,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251997865] [2023-11-24 23:55:34,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251997865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:34,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:34,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:34,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638450856] [2023-11-24 23:55:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:34,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:34,392 INFO L87 Difference]: Start difference. First operand 6964 states and 9886 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-24 23:55:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:36,453 INFO L93 Difference]: Finished difference Result 19828 states and 28157 transitions. [2023-11-24 23:55:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:36,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 403 [2023-11-24 23:55:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:36,566 INFO L225 Difference]: With dead ends: 19828 [2023-11-24 23:55:36,567 INFO L226 Difference]: Without dead ends: 12933 [2023-11-24 23:55:36,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:36,605 INFO L413 NwaCegarLoop]: 2423 mSDtfsCounter, 2557 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:36,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 4810 Invalid, 675 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:55:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12933 states. [2023-11-24 23:55:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12933 to 12923. [2023-11-24 23:55:37,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12923 states, 7737 states have (on average 1.289647150058162) internal successors, (9978), 8102 states have internal predecessors, (9978), 4181 states have call successors, (4181), 1004 states have call predecessors, (4181), 1004 states have return successors, (4181), 3957 states have call predecessors, (4181), 4181 states have call successors, (4181) [2023-11-24 23:55:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12923 states to 12923 states and 18340 transitions. [2023-11-24 23:55:37,670 INFO L78 Accepts]: Start accepts. Automaton has 12923 states and 18340 transitions. Word has length 403 [2023-11-24 23:55:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:37,672 INFO L495 AbstractCegarLoop]: Abstraction has 12923 states and 18340 transitions. [2023-11-24 23:55:37,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-24 23:55:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12923 states and 18340 transitions. [2023-11-24 23:55:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-11-24 23:55:37,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:37,685 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:37,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:55:37,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:37,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:37,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1941793847, now seen corresponding path program 1 times [2023-11-24 23:55:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:37,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407987108] [2023-11-24 23:55:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:37,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4832 trivial. 0 not checked. [2023-11-24 23:55:38,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:38,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407987108] [2023-11-24 23:55:38,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407987108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:38,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:38,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:38,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450934183] [2023-11-24 23:55:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:38,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:38,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:38,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:38,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:38,221 INFO L87 Difference]: Start difference. First operand 12923 states and 18340 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-11-24 23:55:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:41,357 INFO L93 Difference]: Finished difference Result 37603 states and 53362 transitions. [2023-11-24 23:55:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 407 [2023-11-24 23:55:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:41,642 INFO L225 Difference]: With dead ends: 37603 [2023-11-24 23:55:41,642 INFO L226 Difference]: Without dead ends: 24749 [2023-11-24 23:55:41,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:41,697 INFO L413 NwaCegarLoop]: 2476 mSDtfsCounter, 2558 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:41,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 4863 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 23:55:41,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24749 states. [2023-11-24 23:55:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24749 to 24739. [2023-11-24 23:55:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24739 states, 14847 states have (on average 1.2897555061628612) internal successors, (19149), 15558 states have internal predecessors, (19149), 7961 states have call successors, (7961), 1930 states have call predecessors, (7961), 1930 states have return successors, (7961), 7527 states have call predecessors, (7961), 7961 states have call successors, (7961) [2023-11-24 23:55:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24739 states to 24739 states and 35071 transitions. [2023-11-24 23:55:43,668 INFO L78 Accepts]: Start accepts. Automaton has 24739 states and 35071 transitions. Word has length 407 [2023-11-24 23:55:43,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:43,671 INFO L495 AbstractCegarLoop]: Abstraction has 24739 states and 35071 transitions. [2023-11-24 23:55:43,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-11-24 23:55:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 24739 states and 35071 transitions. [2023-11-24 23:55:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-11-24 23:55:43,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:43,687 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:43,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:55:43,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:43,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash 622742011, now seen corresponding path program 1 times [2023-11-24 23:55:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:43,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032570085] [2023-11-24 23:55:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:43,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4836 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4836 trivial. 0 not checked. [2023-11-24 23:55:44,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:44,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032570085] [2023-11-24 23:55:44,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032570085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:44,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:44,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:44,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124553744] [2023-11-24 23:55:44,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:44,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:44,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:44,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:44,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:44,467 INFO L87 Difference]: Start difference. First operand 24739 states and 35071 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-11-24 23:55:48,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:48,165 INFO L93 Difference]: Finished difference Result 70965 states and 100701 transitions. [2023-11-24 23:55:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:48,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 412 [2023-11-24 23:55:48,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:48,441 INFO L225 Difference]: With dead ends: 70965 [2023-11-24 23:55:48,441 INFO L226 Difference]: Without dead ends: 46295 [2023-11-24 23:55:48,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:48,530 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 2559 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2559 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:48,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2559 Valid, 5267 Invalid, 721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:55:48,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46295 states.