./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje --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 a15cb8baf04ebcdf2da2a5900f0ec70919543dab13c9a864e8457c879456985f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:53:38,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:53:38,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:53:38,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:53:38,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:53:38,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:53:38,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:53:38,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:53:38,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:53:38,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:53:38,290 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:53:38,290 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:53:38,291 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:53:38,291 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:53:38,292 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:53:38,292 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:53:38,293 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:53:38,293 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:53:38,293 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:53:38,294 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:53:38,294 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:53:38,295 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:53:38,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:53:38,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:53:38,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:53:38,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:53:38,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:53:38,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:53:38,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:53:38,301 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:53:38,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:53:38,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:53:38,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:53:38,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:53:38,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:53:38,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:38,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:53:38,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:53:38,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:53:38,309 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:53:38,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:53:38,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:53:38,311 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:53:38,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:53:38,312 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_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a15cb8baf04ebcdf2da2a5900f0ec70919543dab13c9a864e8457c879456985f [2024-11-09 05:53:38,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:53:38,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:53:38,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:53:38,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:53:38,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:53:38,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 05:53:40,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:53:41,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:53:41,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2024-11-09 05:53:41,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/data/f221be669/e2c520f8012d48c4a06ed51086edc087/FLAG510509f78 [2024-11-09 05:53:41,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/data/f221be669/e2c520f8012d48c4a06ed51086edc087 [2024-11-09 05:53:41,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:53:41,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:53:41,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:41,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:53:41,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:53:41,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:41" (1/1) ... [2024-11-09 05:53:41,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f43960c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:41, skipping insertion in model container [2024-11-09 05:53:41,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:41" (1/1) ... [2024-11-09 05:53:41,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:53:44,933 WARN L250 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_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2024-11-09 05:53:45,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:45,172 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:53:45,289 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"); [5096] [2024-11-09 05:53:45,291 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)); [5103] [2024-11-09 05:53:45,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [5152] [2024-11-09 05:53:45,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [5155] [2024-11-09 05:53:45,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [5158] [2024-11-09 05:53:45,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [5161] [2024-11-09 05:53:45,295 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [5182-5183] [2024-11-09 05:53:45,296 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"); [5194-5195] [2024-11-09 05:53:45,296 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"); [5198-5199] [2024-11-09 05:53:45,297 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"); [5202-5203] [2024-11-09 05:53:45,297 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"); [5206-5207] [2024-11-09 05:53:45,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7666] [2024-11-09 05:53:45,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7668] [2024-11-09 05:53:45,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7682] [2024-11-09 05:53:45,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7685] [2024-11-09 05:53:45,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7688] [2024-11-09 05:53:45,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7691] [2024-11-09 05:53:45,426 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)); [7716] [2024-11-09 05:53:45,426 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; decl %0": "+m" (v->counter)); [7723] [2024-11-09 05:53:45,426 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [7731-7732] [2024-11-09 05:53:45,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [7745] [2024-11-09 05:53:45,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [7748] [2024-11-09 05:53:45,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [7750] [2024-11-09 05:53:45,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [7755] [2024-11-09 05:53:45,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [7758] [2024-11-09 05:53:45,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [7760] [2024-11-09 05:53:45,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [7765] [2024-11-09 05:53:45,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [7768] [2024-11-09 05:53:45,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [7770] [2024-11-09 05:53:45,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [7775] [2024-11-09 05:53:45,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [7778] [2024-11-09 05:53:45,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [7780] [2024-11-09 05:53:45,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [7798] [2024-11-09 05:53:45,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [7801] [2024-11-09 05:53:45,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [7803] [2024-11-09 05:53:45,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [7808] [2024-11-09 05:53:45,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [7811] [2024-11-09 05:53:45,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [7813] [2024-11-09 05:53:45,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [7818] [2024-11-09 05:53:45,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [7821] [2024-11-09 05:53:45,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [7823] [2024-11-09 05:53:45,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [7828] [2024-11-09 05:53:45,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [7831] [2024-11-09 05:53:45,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [7833] [2024-11-09 05:53:45,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7859] [2024-11-09 05:53:45,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7866] [2024-11-09 05:53:45,835 WARN L250 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_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2024-11-09 05:53:45,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:46,008 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:53:46,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46 WrapperNode [2024-11-09 05:53:46,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:46,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:46,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:53:46,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:53:46,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,557 INFO L138 Inliner]: procedures = 371, calls = 4486, calls flagged for inlining = 170, calls inlined = 169, statements flattened = 10281 [2024-11-09 05:53:46,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:46,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:53:46,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:53:46,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:53:46,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:46,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:47,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:47,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:53:47,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:53:47,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:53:47,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:53:47,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (1/1) ... [2024-11-09 05:53:47,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:47,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:53:47,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:53:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 05:53:47,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 05:53:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_open [2024-11-09 05:53:47,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_open [2024-11-09 05:53:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure put_qp_write [2024-11-09 05:53:47,193 INFO L138 BoogieDeclarations]: Found implementation of procedure put_qp_write [2024-11-09 05:53:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_close [2024-11-09 05:53:47,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_close [2024-11-09 05:53:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_qp [2024-11-09 05:53:47,194 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_qp [2024-11-09 05:53:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-09 05:53:47,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-09 05:53:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure fdget [2024-11-09 05:53:47,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fdget [2024-11-09 05:53:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2024-11-09 05:53:47,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2024-11-09 05:53:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:53:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:53:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_cq [2024-11-09 05:53:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_cq [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure show_ibdev [2024-11-09 05:53:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure show_ibdev [2024-11-09 05:53:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure ib_query_device [2024-11-09 05:53:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_query_device [2024-11-09 05:53:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure fd_install [2024-11-09 05:53:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fd_install [2024-11-09 05:53:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_event_close [2024-11-09 05:53:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_event_close [2024-11-09 05:53:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2024-11-09 05:53:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2024-11-09 05:53:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure ib_copy_to_udata [2024-11-09 05:53:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_copy_to_udata [2024-11-09 05:53:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-09 05:53:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-09 05:53:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure put_pd_read [2024-11-09 05:53:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pd_read [2024-11-09 05:53:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:53:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:53:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure idr_write_qp [2024-11-09 05:53:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_write_qp [2024-11-09 05:53:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2024-11-09 05:53:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2024-11-09 05:53:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_uobj [2024-11-09 05:53:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_uobj [2024-11-09 05:53:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_xrcd [2024-11-09 05:53:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_xrcd [2024-11-09 05:53:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2024-11-09 05:53:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2024-11-09 05:53:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 05:53:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 05:53:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2024-11-09 05:53:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2024-11-09 05:53:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 05:53:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 05:53:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2024-11-09 05:53:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2024-11-09 05:53:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_pd [2024-11-09 05:53:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_pd [2024-11-09 05:53:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2024-11-09 05:53:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2024-11-09 05:53:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-09 05:53:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-09 05:53:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2024-11-09 05:53:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2024-11-09 05:53:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 05:53:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 05:53:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_ucq [2024-11-09 05:53:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_ucq [2024-11-09 05:53:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2024-11-09 05:53:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2024-11-09 05:53:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:53:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:53:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:53:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:53:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_unmarshall_recv [2024-11-09 05:53:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_unmarshall_recv [2024-11-09 05:53:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure idr_add_uobj [2024-11-09 05:53:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_add_uobj [2024-11-09 05:53:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 05:53:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 05:53:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2024-11-09 05:53:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2024-11-09 05:53:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure idr_write_uobj [2024-11-09 05:53:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_write_uobj [2024-11-09 05:53:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2024-11-09 05:53:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2024-11-09 05:53:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 05:53:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 05:53:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2024-11-09 05:53:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2024-11-09 05:53:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:53:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 05:53:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 05:53:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_event_poll [2024-11-09 05:53:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_event_poll [2024-11-09 05:53:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure __uverbs_create_xsrq [2024-11-09 05:53:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __uverbs_create_xsrq [2024-11-09 05:53:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_event_fasync [2024-11-09 05:53:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_event_fasync [2024-11-09 05:53:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure init_uobj [2024-11-09 05:53:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure init_uobj [2024-11-09 05:53:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure put_xrcd_read [2024-11-09 05:53:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure put_xrcd_read [2024-11-09 05:53:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure copy_query_dev_fields [2024-11-09 05:53:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_query_dev_fields [2024-11-09 05:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_alloc_event_file [2024-11-09 05:53:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_alloc_event_file [2024-11-09 05:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-09 05:53:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-09 05:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2024-11-09 05:53:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2024-11-09 05:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure put_uobj [2024-11-09 05:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure put_uobj [2024-11-09 05:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2024-11-09 05:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2024-11-09 05:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_event_read [2024-11-09 05:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_event_read [2024-11-09 05:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 05:53:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 05:53:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:53:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:53:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:53:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:53:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 05:53:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 05:53:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_obj [2024-11-09 05:53:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_obj [2024-11-09 05:53:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_qp [2024-11-09 05:53:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_qp [2024-11-09 05:53:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove_uobj [2024-11-09 05:53:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove_uobj [2024-11-09 05:53:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-09 05:53:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-09 05:53:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-09 05:53:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-09 05:53:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2024-11-09 05:53:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2024-11-09 05:53:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-09 05:53:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-09 05:53:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 05:53:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_ah [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_ah [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure put_uobj_read [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure put_uobj_read [2024-11-09 05:53:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 05:53:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_srq [2024-11-09 05:53:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_srq [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2024-11-09 05:53:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-09 05:53:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure xrcd_table_search [2024-11-09 05:53:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure xrcd_table_search [2024-11-09 05:53:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-09 05:53:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_mw [2024-11-09 05:53:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_mw [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure __idr_get_uobj [2024-11-09 05:53:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __idr_get_uobj [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure put_uobj_write [2024-11-09 05:53:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure put_uobj_write [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2024-11-09 05:53:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2024-11-09 05:53:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:53:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure put_srq_read [2024-11-09 05:53:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure put_srq_read [2024-11-09 05:53:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:53:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:53:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2024-11-09 05:53:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2024-11-09 05:53:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure put_unused_fd [2024-11-09 05:53:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unused_fd [2024-11-09 05:53:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2024-11-09 05:53:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2024-11-09 05:53:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure create_cq [2024-11-09 05:53:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure create_cq [2024-11-09 05:53:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 05:53:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 05:53:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-09 05:53:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-09 05:53:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure modify_qp_mask [2024-11-09 05:53:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure modify_qp_mask [2024-11-09 05:53:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2024-11-09 05:53:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2024-11-09 05:53:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:53:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-09 05:53:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-09 05:53:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-09 05:53:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 05:53:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure get_unused_fd_flags [2024-11-09 05:53:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unused_fd_flags [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 05:53:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 05:53:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:53:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_xrcd [2024-11-09 05:53:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_xrcd [2024-11-09 05:53:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 05:53:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 05:53:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-09 05:53:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-09 05:53:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2024-11-09 05:53:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2024-11-09 05:53:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:53:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure ib_check_mr_access [2024-11-09 05:53:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_check_mr_access [2024-11-09 05:53:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2024-11-09 05:53:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2024-11-09 05:53:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-09 05:53:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-09 05:53:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:53:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2024-11-09 05:53:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-09 05:53:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_flow [2024-11-09 05:53:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_flow [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 05:53:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get___0 [2024-11-09 05:53:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get___0 [2024-11-09 05:53:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure xrcd_table_delete [2024-11-09 05:53:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure xrcd_table_delete [2024-11-09 05:53:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2024-11-09 05:53:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2024-11-09 05:53:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-09 05:53:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-09 05:53:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure ib_detach_mcast [2024-11-09 05:53:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_detach_mcast [2024-11-09 05:53:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 05:53:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 05:53:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure show_dev_abi_version [2024-11-09 05:53:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure show_dev_abi_version [2024-11-09 05:53:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 05:53:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 05:53:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2024-11-09 05:53:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2024-11-09 05:53:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_cq [2024-11-09 05:53:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_cq [2024-11-09 05:53:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 05:53:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 05:53:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure idr_read_srq [2024-11-09 05:53:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_read_srq [2024-11-09 05:53:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2024-11-09 05:53:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2024-11-09 05:53:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2024-11-09 05:53:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2024-11-09 05:53:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure put_qp_read [2024-11-09 05:53:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure put_qp_read [2024-11-09 05:53:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 05:53:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 05:53:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2024-11-09 05:53:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2024-11-09 05:53:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 05:53:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 05:53:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2024-11-09 05:53:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2024-11-09 05:53:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ib_copy_from_udata [2024-11-09 05:53:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_copy_from_udata [2024-11-09 05:53:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-09 05:53:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-09 05:53:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_uevent [2024-11-09 05:53:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_uevent [2024-11-09 05:53:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 05:53:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure put_cq_read [2024-11-09 05:53:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cq_read [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2024-11-09 05:53:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2024-11-09 05:53:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2024-11-09 05:53:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2024-11-09 05:53:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:53:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:53:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2024-11-09 05:53:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2024-11-09 05:53:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 05:53:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 05:53:48,605 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:53:48,610 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:53:49,324 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:54:31,800 INFO L? ?]: Removed 3881 outVars from TransFormulas that were not future-live. [2024-11-09 05:54:31,800 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:54:34,819 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:54:34,819 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:54:34,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:34 BoogieIcfgContainer [2024-11-09 05:54:34,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:54:34,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:54:34,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:54:34,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:54:34,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:53:41" (1/3) ... [2024-11-09 05:54:34,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da42f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:34, skipping insertion in model container [2024-11-09 05:54:34,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:46" (2/3) ... [2024-11-09 05:54:34,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da42f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:34, skipping insertion in model container [2024-11-09 05:54:34,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:34" (3/3) ... [2024-11-09 05:54:34,834 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2024-11-09 05:54:34,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:54:34,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:54:35,019 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:54:35,028 INFO L333 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, 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;@4ea23239, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:54:35,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:54:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 1565 states have (on average 1.3693290734824282) internal successors, (2143), 1645 states have internal predecessors, (2143), 884 states have call successors, (884), 148 states have call predecessors, (884), 147 states have return successors, (875), 867 states have call predecessors, (875), 875 states have call successors, (875) [2024-11-09 05:54:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-09 05:54:35,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:35,104 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:35,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:35,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:35,111 INFO L85 PathProgramCache]: Analyzing trace with hash 195258834, now seen corresponding path program 1 times [2024-11-09 05:54:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:35,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315930470] [2024-11-09 05:54:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2024-11-09 05:55:00,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315930470] [2024-11-09 05:55:00,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315930470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:00,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:55:00,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:55:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066128802] [2024-11-09 05:55:00,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:00,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:55:00,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:55:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:55:00,534 INFO L87 Difference]: Start difference. First operand has 2598 states, 1565 states have (on average 1.3693290734824282) internal successors, (2143), 1645 states have internal predecessors, (2143), 884 states have call successors, (884), 148 states have call predecessors, (884), 147 states have return successors, (875), 867 states have call predecessors, (875), 875 states have call successors, (875) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 05:55:02,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:07,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:09,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:12,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:14,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:16,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:19,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:21,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:24,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:25,925 INFO L93 Difference]: Finished difference Result 7654 states and 11868 transitions. [2024-11-09 05:55:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:55:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 328 [2024-11-09 05:55:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:26,002 INFO L225 Difference]: With dead ends: 7654 [2024-11-09 05:55:26,003 INFO L226 Difference]: Without dead ends: 5077 [2024-11-09 05:55:26,031 INFO L431 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 [2024-11-09 05:55:26,036 INFO L432 NwaCegarLoop]: 3605 mSDtfsCounter, 3799 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:26,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3799 Valid, 7112 Invalid, 610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 7 Unknown, 0 Unchecked, 24.9s Time] [2024-11-09 05:55:26,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2024-11-09 05:55:26,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 5073. [2024-11-09 05:55:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5073 states, 3078 states have (on average 1.3664717348927875) internal successors, (4206), 3216 states have internal predecessors, (4206), 1704 states have call successors, (1704), 291 states have call predecessors, (1704), 290 states have return successors, (1709), 1685 states have call predecessors, (1709), 1702 states have call successors, (1709) [2024-11-09 05:55:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 7619 transitions. [2024-11-09 05:55:26,506 INFO L78 Accepts]: Start accepts. Automaton has 5073 states and 7619 transitions. Word has length 328 [2024-11-09 05:55:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:26,511 INFO L471 AbstractCegarLoop]: Abstraction has 5073 states and 7619 transitions. [2024-11-09 05:55:26,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 05:55:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5073 states and 7619 transitions. [2024-11-09 05:55:26,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-09 05:55:26,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:26,523 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 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] [2024-11-09 05:55:26,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:55:26,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:55:26,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:26,524 INFO L85 PathProgramCache]: Analyzing trace with hash 629175123, now seen corresponding path program 1 times [2024-11-09 05:55:26,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:55:26,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710277392] [2024-11-09 05:55:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:26,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1747 trivial. 0 not checked. [2024-11-09 05:55:47,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:47,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710277392] [2024-11-09 05:55:47,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710277392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:47,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:55:47,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:55:47,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289060528] [2024-11-09 05:55:47,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:47,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:55:47,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:55:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:55:47,724 INFO L87 Difference]: Start difference. First operand 5073 states and 7619 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-09 05:55:49,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:54,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:56,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:01,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:03,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:05,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:08,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:10,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:13,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:15,643 INFO L93 Difference]: Finished difference Result 14994 states and 23217 transitions. [2024-11-09 05:56:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:56:15,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 347 [2024-11-09 05:56:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:15,727 INFO L225 Difference]: With dead ends: 14994 [2024-11-09 05:56:15,728 INFO L226 Difference]: Without dead ends: 9982 [2024-11-09 05:56:15,758 INFO L431 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 [2024-11-09 05:56:15,760 INFO L432 NwaCegarLoop]: 3616 mSDtfsCounter, 3977 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 5 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 7206 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:15,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3977 Valid, 7206 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 610 Invalid, 8 Unknown, 0 Unchecked, 27.5s Time] [2024-11-09 05:56:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9982 states. [2024-11-09 05:56:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9982 to 9953. [2024-11-09 05:56:16,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9953 states, 6044 states have (on average 1.3679682329583058) internal successors, (8268), 6316 states have internal predecessors, (8268), 3334 states have call successors, (3334), 575 states have call predecessors, (3334), 574 states have return successors, (4049), 3297 states have call predecessors, (4049), 3332 states have call successors, (4049) [2024-11-09 05:56:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9953 states to 9953 states and 15651 transitions. [2024-11-09 05:56:16,378 INFO L78 Accepts]: Start accepts. Automaton has 9953 states and 15651 transitions. Word has length 347 [2024-11-09 05:56:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:16,380 INFO L471 AbstractCegarLoop]: Abstraction has 9953 states and 15651 transitions. [2024-11-09 05:56:16,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-09 05:56:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9953 states and 15651 transitions. [2024-11-09 05:56:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-09 05:56:16,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:16,398 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 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] [2024-11-09 05:56:16,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:56:16,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:16,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash -757958336, now seen corresponding path program 1 times [2024-11-09 05:56:16,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:16,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083890144] [2024-11-09 05:56:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:16,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:56:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1747 trivial. 0 not checked. [2024-11-09 05:56:37,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:56:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083890144] [2024-11-09 05:56:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083890144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:56:37,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:56:37,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:56:37,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216930463] [2024-11-09 05:56:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:56:37,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:56:37,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:56:37,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:56:37,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:56:37,912 INFO L87 Difference]: Start difference. First operand 9953 states and 15651 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 05:56:40,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:43,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:46,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:49,210 INFO L93 Difference]: Finished difference Result 19721 states and 31009 transitions. [2024-11-09 05:56:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:56:49,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 355 [2024-11-09 05:56:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:49,297 INFO L225 Difference]: With dead ends: 19721 [2024-11-09 05:56:49,297 INFO L226 Difference]: Without dead ends: 9829 [2024-11-09 05:56:49,355 INFO L431 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 [2024-11-09 05:56:49,356 INFO L432 NwaCegarLoop]: 3528 mSDtfsCounter, 3821 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:49,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3821 Valid, 3528 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 296 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 05:56:49,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2024-11-09 05:56:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9829. [2024-11-09 05:56:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 5952 states have (on average 1.364247311827957) internal successors, (8120), 6224 states have internal predecessors, (8120), 3306 states have call successors, (3306), 571 states have call predecessors, (3306), 570 states have return successors, (4017), 3269 states have call predecessors, (4017), 3304 states have call successors, (4017) [2024-11-09 05:56:50,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 15443 transitions. [2024-11-09 05:56:50,152 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 15443 transitions. Word has length 355 [2024-11-09 05:56:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:50,153 INFO L471 AbstractCegarLoop]: Abstraction has 9829 states and 15443 transitions. [2024-11-09 05:56:50,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 05:56:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 15443 transitions. [2024-11-09 05:56:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-09 05:56:50,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:50,162 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 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] [2024-11-09 05:56:50,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:56:50,163 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:50,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:50,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1092281314, now seen corresponding path program 1 times [2024-11-09 05:56:50,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:50,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808203260] [2024-11-09 05:56:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:50,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1747 trivial. 0 not checked. [2024-11-09 05:57:10,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808203260] [2024-11-09 05:57:10,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808203260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:10,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:10,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:57:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053228830] [2024-11-09 05:57:10,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:10,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:57:10,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:10,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:57:10,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:10,589 INFO L87 Difference]: Start difference. First operand 9829 states and 15443 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-09 05:57:12,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:16,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:18,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:21,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:22,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:22,900 INFO L93 Difference]: Finished difference Result 19193 states and 30104 transitions. [2024-11-09 05:57:22,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:57:22,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 355 [2024-11-09 05:57:22,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:22,975 INFO L225 Difference]: With dead ends: 19193 [2024-11-09 05:57:22,975 INFO L226 Difference]: Without dead ends: 9425 [2024-11-09 05:57:23,024 INFO L431 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 [2024-11-09 05:57:23,025 INFO L432 NwaCegarLoop]: 3423 mSDtfsCounter, 3703 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:23,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 3423 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 287 Invalid, 4 Unknown, 0 Unchecked, 12.0s Time] [2024-11-09 05:57:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9425 states. [2024-11-09 05:57:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9425 to 9418. [2024-11-09 05:57:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9418 states, 5698 states have (on average 1.3622323622323622) internal successors, (7762), 5967 states have internal predecessors, (7762), 3171 states have call successors, (3171), 549 states have call predecessors, (3171), 548 states have return successors, (3805), 3133 states have call predecessors, (3805), 3169 states have call successors, (3805) [2024-11-09 05:57:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9418 states to 9418 states and 14738 transitions. [2024-11-09 05:57:23,664 INFO L78 Accepts]: Start accepts. Automaton has 9418 states and 14738 transitions. Word has length 355 [2024-11-09 05:57:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:23,666 INFO L471 AbstractCegarLoop]: Abstraction has 9418 states and 14738 transitions. [2024-11-09 05:57:23,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-09 05:57:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9418 states and 14738 transitions. [2024-11-09 05:57:23,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-09 05:57:23,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:23,675 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 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] [2024-11-09 05:57:23,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:57:23,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:57:23,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:23,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2051965973, now seen corresponding path program 1 times [2024-11-09 05:57:23,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:23,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588093833] [2024-11-09 05:57:23,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:23,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1747 trivial. 0 not checked. [2024-11-09 05:57:44,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:44,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588093833] [2024-11-09 05:57:44,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588093833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:44,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:57:44,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:57:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543252429] [2024-11-09 05:57:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:44,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:57:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:57:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:57:44,581 INFO L87 Difference]: Start difference. First operand 9418 states and 14738 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:57:46,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:51,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:53,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:57,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:00,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:02,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:04,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:08,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:11,961 INFO L93 Difference]: Finished difference Result 28076 states and 43944 transitions. [2024-11-09 05:58:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:11,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 369 [2024-11-09 05:58:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:12,098 INFO L225 Difference]: With dead ends: 28076 [2024-11-09 05:58:12,098 INFO L226 Difference]: Without dead ends: 18719 [2024-11-09 05:58:12,151 INFO L431 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 [2024-11-09 05:58:12,152 INFO L432 NwaCegarLoop]: 4818 mSDtfsCounter, 3684 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3684 SdHoareTripleChecker+Valid, 8147 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:12,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3684 Valid, 8147 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 716 Invalid, 8 Unknown, 0 Unchecked, 26.7s Time] [2024-11-09 05:58:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18719 states. [2024-11-09 05:58:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18719 to 18701. [2024-11-09 05:58:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18701 states, 11318 states have (on average 1.362961654002474) internal successors, (15426), 11856 states have internal predecessors, (15426), 6290 states have call successors, (6290), 1093 states have call predecessors, (6290), 1092 states have return successors, (7552), 6215 states have call predecessors, (7552), 6288 states have call successors, (7552) [2024-11-09 05:58:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 29268 transitions. [2024-11-09 05:58:13,541 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 29268 transitions. Word has length 369 [2024-11-09 05:58:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:13,542 INFO L471 AbstractCegarLoop]: Abstraction has 18701 states and 29268 transitions. [2024-11-09 05:58:13,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:58:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 29268 transitions. [2024-11-09 05:58:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-09 05:58:13,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:13,546 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:13,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:58:13,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:58:13,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1886100442, now seen corresponding path program 1 times [2024-11-09 05:58:13,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:13,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628816431] [2024-11-09 05:58:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:13,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1917 trivial. 0 not checked. [2024-11-09 05:58:36,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628816431] [2024-11-09 05:58:36,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628816431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:36,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:36,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:58:36,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154273418] [2024-11-09 05:58:36,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:36,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:36,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:36,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:36,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:36,383 INFO L87 Difference]: Start difference. First operand 18701 states and 29268 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-09 05:58:38,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:40,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:46,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:48,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:50,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:53,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:55,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:57,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:02,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:04,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:05,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:09,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:09,770 INFO L93 Difference]: Finished difference Result 46650 states and 73028 transitions. [2024-11-09 05:59:09,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:09,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 402 [2024-11-09 05:59:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:09,981 INFO L225 Difference]: With dead ends: 46650 [2024-11-09 05:59:09,982 INFO L226 Difference]: Without dead ends: 28018 [2024-11-09 05:59:10,084 INFO L431 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 [2024-11-09 05:59:10,087 INFO L432 NwaCegarLoop]: 6509 mSDtfsCounter, 3605 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3605 SdHoareTripleChecker+Valid, 9919 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:10,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3605 Valid, 9919 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 837 Invalid, 8 Unknown, 0 Unchecked, 32.4s Time] [2024-11-09 05:59:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28018 states. [2024-11-09 05:59:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28018 to 28000. [2024-11-09 05:59:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28000 states, 16958 states have (on average 1.3632503832999174) internal successors, (23118), 17765 states have internal predecessors, (23118), 9407 states have call successors, (9407), 1635 states have call predecessors, (9407), 1634 states have return successors, (11297), 9295 states have call predecessors, (11297), 9405 states have call successors, (11297) [2024-11-09 05:59:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28000 states to 28000 states and 43822 transitions. [2024-11-09 05:59:12,040 INFO L78 Accepts]: Start accepts. Automaton has 28000 states and 43822 transitions. Word has length 402 [2024-11-09 05:59:12,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:12,041 INFO L471 AbstractCegarLoop]: Abstraction has 28000 states and 43822 transitions. [2024-11-09 05:59:12,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-09 05:59:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 28000 states and 43822 transitions. [2024-11-09 05:59:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-09 05:59:12,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:12,051 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:59:12,051 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:12,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1591865185, now seen corresponding path program 1 times [2024-11-09 05:59:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687496967] [2024-11-09 05:59:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2024-11-09 05:59:35,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:35,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687496967] [2024-11-09 05:59:35,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687496967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:35,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:35,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:59:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721948776] [2024-11-09 05:59:35,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:35,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:59:35,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:59:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:59:35,500 INFO L87 Difference]: Start difference. First operand 28000 states and 43822 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-09 05:59:37,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:39,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:42,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:44,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:46,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:48,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:02,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:04,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:06,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:08,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:10,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:13,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:16,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:18,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:20,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:22,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:24,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:26,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:34,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:36,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:37,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:39,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:41,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:43,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:00:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:49,856 INFO L93 Difference]: Finished difference Result 55919 states and 91098 transitions. [2024-11-09 06:00:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:00:49,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 418 [2024-11-09 06:00:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:50,083 INFO L225 Difference]: With dead ends: 55919 [2024-11-09 06:00:50,083 INFO L226 Difference]: Without dead ends: 27988 [2024-11-09 06:00:50,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:00:50,277 INFO L432 NwaCegarLoop]: 3409 mSDtfsCounter, 26 mSDsluCounter, 17037 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 19 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 20446 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:50,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 20446 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1819 Invalid, 21 Unknown, 0 Unchecked, 72.9s Time] [2024-11-09 06:00:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27988 states. [2024-11-09 06:00:52,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27988 to 27940. [2024-11-09 06:00:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27940 states, 16964 states have (on average 1.3617071445413818) internal successors, (23100), 17759 states have internal predecessors, (23100), 9317 states have call successors, (9317), 1659 states have call predecessors, (9317), 1658 states have return successors, (11082), 9205 states have call predecessors, (11082), 9315 states have call successors, (11082) [2024-11-09 06:00:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27940 states to 27940 states and 43499 transitions. [2024-11-09 06:00:52,574 INFO L78 Accepts]: Start accepts. Automaton has 27940 states and 43499 transitions. Word has length 418 [2024-11-09 06:00:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:52,574 INFO L471 AbstractCegarLoop]: Abstraction has 27940 states and 43499 transitions. [2024-11-09 06:00:52,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-09 06:00:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 27940 states and 43499 transitions. [2024-11-09 06:00:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-09 06:00:52,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:52,591 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 11, 11, 11, 11, 11, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:52,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:00:52,592 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:00:52,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -909606803, now seen corresponding path program 1 times [2024-11-09 06:00:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:52,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956252265] [2024-11-09 06:00:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2300 trivial. 0 not checked. [2024-11-09 06:01:17,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:17,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956252265] [2024-11-09 06:01:17,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956252265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:17,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:17,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:01:17,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432264578] [2024-11-09 06:01:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:17,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:01:17,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:17,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:01:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:01:17,290 INFO L87 Difference]: Start difference. First operand 27940 states and 43499 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 06:01:19,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:21,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:27,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:30,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:32,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:34,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:36,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:41,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:46,580 INFO L93 Difference]: Finished difference Result 69330 states and 108812 transitions. [2024-11-09 06:01:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:01:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 492 [2024-11-09 06:01:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:46,815 INFO L225 Difference]: With dead ends: 69330 [2024-11-09 06:01:46,815 INFO L226 Difference]: Without dead ends: 41459 [2024-11-09 06:01:46,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:01:46,940 INFO L432 NwaCegarLoop]: 3997 mSDtfsCounter, 3559 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:46,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 7483 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 666 Invalid, 7 Unknown, 0 Unchecked, 27.6s Time] [2024-11-09 06:01:46,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41459 states. [2024-11-09 06:01:48,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41459 to 41327. [2024-11-09 06:01:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41327 states, 25150 states have (on average 1.362624254473161) internal successors, (34270), 26326 states have internal predecessors, (34270), 13728 states have call successors, (13728), 2449 states have call predecessors, (13728), 2448 states have return successors, (17239), 13565 states have call predecessors, (17239), 13726 states have call successors, (17239) [2024-11-09 06:01:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41327 states to 41327 states and 65237 transitions. [2024-11-09 06:01:49,207 INFO L78 Accepts]: Start accepts. Automaton has 41327 states and 65237 transitions. Word has length 492 [2024-11-09 06:01:49,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:49,208 INFO L471 AbstractCegarLoop]: Abstraction has 41327 states and 65237 transitions. [2024-11-09 06:01:49,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 06:01:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 41327 states and 65237 transitions. [2024-11-09 06:01:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-09 06:01:49,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:49,217 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:49,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:01:49,218 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:49,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:49,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1924784757, now seen corresponding path program 1 times [2024-11-09 06:01:49,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201696643] [2024-11-09 06:01:49,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:49,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2306 trivial. 0 not checked. [2024-11-09 06:02:17,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201696643] [2024-11-09 06:02:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201696643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:02:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700714744] [2024-11-09 06:02:17,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:17,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:17,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:17,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:17,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:02:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:43,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 8398 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:02:43,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:54,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:02:54,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 119 [2024-11-09 06:02:54,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:02:54,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 105 [2024-11-09 06:02:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 1944 trivial. 0 not checked. [2024-11-09 06:02:56,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:03:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2316 trivial. 0 not checked. [2024-11-09 06:03:11,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700714744] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:03:11,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:03:11,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 10] total 23 [2024-11-09 06:03:11,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729541072] [2024-11-09 06:03:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:03:11,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:03:11,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:03:11,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:03:11,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:03:11,597 INFO L87 Difference]: Start difference. First operand 41327 states and 65237 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (60), 5 states have call predecessors, (60), 2 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) [2024-11-09 06:03:13,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:15,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:18,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:42,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:44,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:46,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:49,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:51,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:53,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:56,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:04:06,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:04:25,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:04:28,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:04:37,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:04:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:04:56,322 INFO L93 Difference]: Finished difference Result 61983 states and 99364 transitions. [2024-11-09 06:04:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:04:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (60), 5 states have call predecessors, (60), 2 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) Word has length 495 [2024-11-09 06:04:56,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:04:56,661 INFO L225 Difference]: With dead ends: 61983 [2024-11-09 06:04:56,661 INFO L226 Difference]: Without dead ends: 61980 [2024-11-09 06:04:56,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 971 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:04:56,696 INFO L432 NwaCegarLoop]: 6717 mSDtfsCounter, 11142 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 4815 mSolverCounterSat, 3351 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11142 SdHoareTripleChecker+Valid, 10166 SdHoareTripleChecker+Invalid, 8178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3351 IncrementalHoareTripleChecker+Valid, 4815 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:04:56,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11142 Valid, 10166 Invalid, 8178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3351 Valid, 4815 Invalid, 12 Unknown, 0 Unchecked, 102.0s Time] [2024-11-09 06:04:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61980 states. [2024-11-09 06:04:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61980 to 61965. [2024-11-09 06:04:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61965 states, 37713 states have (on average 1.3629782833505688) internal successors, (51402), 39477 states have internal predecessors, (51402), 20581 states have call successors, (20581), 3671 states have call predecessors, (20581), 3670 states have return successors, (27350), 20337 states have call predecessors, (27350), 20579 states have call successors, (27350) [2024-11-09 06:05:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61965 states to 61965 states and 99333 transitions. [2024-11-09 06:05:00,356 INFO L78 Accepts]: Start accepts. Automaton has 61965 states and 99333 transitions. Word has length 495 [2024-11-09 06:05:00,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:00,356 INFO L471 AbstractCegarLoop]: Abstraction has 61965 states and 99333 transitions. [2024-11-09 06:05:00,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (60), 5 states have call predecessors, (60), 2 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) [2024-11-09 06:05:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 61965 states and 99333 transitions. [2024-11-09 06:05:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-11-09 06:05:00,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:00,369 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 11, 11, 11, 11, 11, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:05:00,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:05:00,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:00,570 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:05:00,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash 374813629, now seen corresponding path program 1 times [2024-11-09 06:05:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927847940] [2024-11-09 06:05:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2303 trivial. 0 not checked. [2024-11-09 06:05:25,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:25,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927847940] [2024-11-09 06:05:25,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927847940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:25,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960538278] [2024-11-09 06:05:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:25,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:25,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:25,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab35a7d-2afe-4b7e-8b88-a7717763b0a1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:05:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:50,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 8658 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:05:50,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 1941 trivial. 0 not checked. [2024-11-09 06:05:52,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:05:52,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960538278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:05:52,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:05:52,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-09 06:05:52,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119183630] [2024-11-09 06:05:52,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:05:52,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:05:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:52,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:05:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:05:52,748 INFO L87 Difference]: Start difference. First operand 61965 states and 99333 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 3 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (58), 4 states have call predecessors, (58), 3 states have call successors, (58) [2024-11-09 06:05:54,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:05:57,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:05:59,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:01,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:03,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:36,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:38,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:40,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:43,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:45,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:47,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:54,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:56,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:58,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:59,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:11,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:13,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:15,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:17,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []