./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:13,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:13,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:42:13,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:13,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:13,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:13,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:13,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:13,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:13,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:13,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:13,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:13,323 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:13,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:13,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:13,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:13,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:13,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:13,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:13,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:13,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:13,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:13,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:13,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:13,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:13,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:13,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:13,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:13,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:13,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:13,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:13,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:13,340 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:13,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:13,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:13,340 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:13,341 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2023-11-19 07:42:13,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:13,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:13,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:13,708 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:13,709 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:13,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2023-11-19 07:42:16,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:17,690 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:17,690 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2023-11-19 07:42:17,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/data/404b7f249/745e663d017a49ff970454c1c6833c72/FLAG008f03b95 [2023-11-19 07:42:17,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/data/404b7f249/745e663d017a49ff970454c1c6833c72 [2023-11-19 07:42:17,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:17,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:17,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:17,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:17,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:17,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:17" (1/1) ... [2023-11-19 07:42:17,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c804fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:17, skipping insertion in model container [2023-11-19 07:42:17,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:17" (1/1) ... [2023-11-19 07:42:17,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:20,914 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2023-11-19 07:42:21,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:21,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:21,298 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"); [5180] [2023-11-19 07:42:21,300 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)); [5187] [2023-11-19 07:42:21,301 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5194-5195] [2023-11-19 07:42:21,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [5208-5209] [2023-11-19 07:42:21,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5237] [2023-11-19 07:42:21,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5240] [2023-11-19 07:42:21,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5243] [2023-11-19 07:42:21,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5246] [2023-11-19 07:42:21,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___8->state): : "memory", "cc"); [8708-8709] [2023-11-19 07:42:21,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___9->state): : "memory", "cc"); [8713-8714] [2023-11-19 07:42:21,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___10->state): : "memory", "cc"); [8718-8719] [2023-11-19 07:42:21,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___11->state): : "memory", "cc"); [8723-8724] [2023-11-19 07:42:21,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___15->state): : "memory", "cc"); [8749-8750] [2023-11-19 07:42:21,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___16->state): : "memory", "cc"); [8754-8755] [2023-11-19 07:42:21,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___17->state): : "memory", "cc"); [8759-8760] [2023-11-19 07:42:21,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___18->state): : "memory", "cc"); [8764-8765] [2023-11-19 07:42:21,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___28->state): : "memory", "cc"); [8836-8837] [2023-11-19 07:42:21,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___29->state): : "memory", "cc"); [8841-8842] [2023-11-19 07:42:21,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___30->state): : "memory", "cc"); [8846-8847] [2023-11-19 07:42:21,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___31->state): : "memory", "cc"); [8851-8852] [2023-11-19 07:42:21,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8876] [2023-11-19 07:42:21,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8879] [2023-11-19 07:42:21,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8882] [2023-11-19 07:42:21,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8885] [2023-11-19 07:42:21,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8888] [2023-11-19 07:42:21,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [8939-8940] [2023-11-19 07:42:21,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [8944-8945] [2023-11-19 07:42:21,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [8949-8950] [2023-11-19 07:42:21,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [8954-8955] [2023-11-19 07:42:21,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___8->state): : "memory", "cc"); [8978-8979] [2023-11-19 07:42:21,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [8983-8984] [2023-11-19 07:42:21,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [8988-8989] [2023-11-19 07:42:21,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [8993-8994] [2023-11-19 07:42:21,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___12->state): : "memory", "cc"); [9019-9020] [2023-11-19 07:42:21,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___13->state): : "memory", "cc"); [9024-9025] [2023-11-19 07:42:21,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___14->state): : "memory", "cc"); [9029-9030] [2023-11-19 07:42:21,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___15->state): : "memory", "cc"); [9034-9035] [2023-11-19 07:42:21,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [9243-9244] [2023-11-19 07:42:21,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [9248-9249] [2023-11-19 07:42:21,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [9253-9254] [2023-11-19 07:42:21,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [9258-9259] [2023-11-19 07:42:21,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [9301-9302] [2023-11-19 07:42:21,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [9306-9307] [2023-11-19 07:42:21,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [9311-9312] [2023-11-19 07:42:21,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___12->state): : "memory", "cc"); [9316-9317] [2023-11-19 07:42:22,063 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2023-11-19 07:42:22,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:22,290 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:22,290 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:22,292 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:22,292 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:22,292 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:22,301 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:22,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22 WrapperNode [2023-11-19 07:42:22,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:22,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:22,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:22,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:22,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:22,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:22,922 INFO L138 Inliner]: procedures = 356, calls = 3979, calls flagged for inlining = 168, calls inlined = 134, statements flattened = 8239 [2023-11-19 07:42:22,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:22,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:22,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:22,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:22,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:22,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:22,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:22,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:23,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:23,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:23,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:23,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (1/1) ... [2023-11-19 07:42:23,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:23,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:23,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:23,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c058605-d02a-4dec-85cf-3892631cd66f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-11-19 07:42:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-11-19 07:42:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-11-19 07:42:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-11-19 07:42:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 07:42:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:42:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:42:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2023-11-19 07:42:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2023-11-19 07:42:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 07:42:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 07:42:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:42:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:42:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 07:42:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 07:42:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2023-11-19 07:42:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2023-11-19 07:42:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2023-11-19 07:42:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2023-11-19 07:42:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2023-11-19 07:42:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2023-11-19 07:42:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2023-11-19 07:42:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2023-11-19 07:42:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:42:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:42:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2023-11-19 07:42:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2023-11-19 07:42:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2023-11-19 07:42:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2023-11-19 07:42:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:42:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:42:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:42:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:42:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2023-11-19 07:42:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2023-11-19 07:42:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2023-11-19 07:42:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2023-11-19 07:42:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 07:42:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 07:42:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 07:42:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 07:42:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:42:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:42:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2023-11-19 07:42:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2023-11-19 07:42:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 07:42:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 07:42:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 07:42:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 07:42:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2023-11-19 07:42:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2023-11-19 07:42:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-19 07:42:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-19 07:42:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:42:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:42:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2023-11-19 07:42:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2023-11-19 07:42:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:42:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:42:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2023-11-19 07:42:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2023-11-19 07:42:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2023-11-19 07:42:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2023-11-19 07:42:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:42:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:42:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2023-11-19 07:42:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2023-11-19 07:42:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2023-11-19 07:42:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2023-11-19 07:42:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2023-11-19 07:42:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2023-11-19 07:42:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:42:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2023-11-19 07:42:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2023-11-19 07:42:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 07:42:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 07:42:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:42:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:42:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2023-11-19 07:42:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2023-11-19 07:42:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2023-11-19 07:42:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2023-11-19 07:42:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2023-11-19 07:42:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2023-11-19 07:42:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 07:42:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 07:42:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:42:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2023-11-19 07:42:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2023-11-19 07:42:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:42:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:42:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:42:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:42:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2023-11-19 07:42:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2023-11-19 07:42:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 07:42:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 07:42:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:42:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:42:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2023-11-19 07:42:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2023-11-19 07:42:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:42:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:42:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-11-19 07:42:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-11-19 07:42:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 07:42:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 07:42:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2023-11-19 07:42:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2023-11-19 07:42:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2023-11-19 07:42:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2023-11-19 07:42:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-19 07:42:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-19 07:42:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2023-11-19 07:42:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2023-11-19 07:42:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:42:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:42:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:42:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:42:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:42:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:42:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-19 07:42:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-19 07:42:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2023-11-19 07:42:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2023-11-19 07:42:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2023-11-19 07:42:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2023-11-19 07:42:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:42:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 07:42:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 07:42:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 07:42:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 07:42:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-19 07:42:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-19 07:42:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2023-11-19 07:42:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2023-11-19 07:42:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2023-11-19 07:42:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2023-11-19 07:42:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:42:23,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:42:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2023-11-19 07:42:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2023-11-19 07:42:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2023-11-19 07:42:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2023-11-19 07:42:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure install [2023-11-19 07:42:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2023-11-19 07:42:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2023-11-19 07:42:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2023-11-19 07:42:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:42:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:42:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2023-11-19 07:42:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2023-11-19 07:42:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-19 07:42:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-19 07:42:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:42:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:42:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2023-11-19 07:42:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2023-11-19 07:42:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2023-11-19 07:42:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2023-11-19 07:42:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:42:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:42:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2023-11-19 07:42:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2023-11-19 07:42:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2023-11-19 07:42:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2023-11-19 07:42:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2023-11-19 07:42:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2023-11-19 07:42:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:42:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:42:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2023-11-19 07:42:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2023-11-19 07:42:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:42:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:42:23,489 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:42:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-19 07:42:23,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-19 07:42:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2023-11-19 07:42:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2023-11-19 07:42:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-19 07:42:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-19 07:42:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:42:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2023-11-19 07:42:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2023-11-19 07:42:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:42:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2023-11-19 07:42:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2023-11-19 07:42:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2023-11-19 07:42:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2023-11-19 07:42:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2023-11-19 07:42:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2023-11-19 07:42:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2023-11-19 07:42:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2023-11-19 07:42:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2023-11-19 07:42:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2023-11-19 07:42:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2023-11-19 07:42:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2023-11-19 07:42:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 07:42:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 07:42:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 07:42:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 07:42:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2023-11-19 07:42:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2023-11-19 07:42:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2023-11-19 07:42:23,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2023-11-19 07:42:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2023-11-19 07:42:23,496 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2023-11-19 07:42:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 07:42:23,496 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 07:42:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2023-11-19 07:42:23,496 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2023-11-19 07:42:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 07:42:23,496 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 07:42:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2023-11-19 07:42:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2023-11-19 07:42:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2023-11-19 07:42:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2023-11-19 07:42:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2023-11-19 07:42:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2023-11-19 07:42:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-19 07:42:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-19 07:42:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2023-11-19 07:42:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2023-11-19 07:42:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 07:42:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 07:42:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-19 07:42:23,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-19 07:42:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2023-11-19 07:42:23,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2023-11-19 07:42:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2023-11-19 07:42:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2023-11-19 07:42:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2023-11-19 07:42:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2023-11-19 07:42:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:23,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2023-11-19 07:42:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2023-11-19 07:42:24,708 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:24,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:01,795 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:01,823 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:01,824 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:43:01,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:01 BoogieIcfgContainer [2023-11-19 07:43:01,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:01,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:01,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:01,846 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:01,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:17" (1/3) ... [2023-11-19 07:43:01,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a894900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:01, skipping insertion in model container [2023-11-19 07:43:01,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:22" (2/3) ... [2023-11-19 07:43:01,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a894900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:01, skipping insertion in model container [2023-11-19 07:43:01,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:01" (3/3) ... [2023-11-19 07:43:01,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2023-11-19 07:43:01,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:01,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:43:02,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:02,022 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@21b61aae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:02,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:43:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 3483 states, 2552 states have (on average 1.4612068965517242) internal successors, (3729), 2609 states have internal predecessors, (3729), 818 states have call successors, (818), 111 states have call predecessors, (818), 111 states have return successors, (818), 812 states have call predecessors, (818), 818 states have call successors, (818) [2023-11-19 07:43:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:43:02,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:02,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:02,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:02,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash -348429164, now seen corresponding path program 1 times [2023-11-19 07:43:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:02,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391567725] [2023-11-19 07:43:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:02,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:43:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:02,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391567725] [2023-11-19 07:43:02,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391567725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:02,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:02,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:02,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924406848] [2023-11-19 07:43:02,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:02,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:02,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:02,920 INFO L87 Difference]: Start difference. First operand has 3483 states, 2552 states have (on average 1.4612068965517242) internal successors, (3729), 2609 states have internal predecessors, (3729), 818 states have call successors, (818), 111 states have call predecessors, (818), 111 states have return successors, (818), 812 states have call predecessors, (818), 818 states have call successors, (818) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:04,281 INFO L93 Difference]: Finished difference Result 8957 states and 13904 transitions. [2023-11-19 07:43:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:43:04,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:04,367 INFO L225 Difference]: With dead ends: 8957 [2023-11-19 07:43:04,367 INFO L226 Difference]: Without dead ends: 5469 [2023-11-19 07:43:04,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:04,412 INFO L413 NwaCegarLoop]: 6301 mSDtfsCounter, 2955 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 11311 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:04,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 11311 Invalid, 290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:43:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5469 states. [2023-11-19 07:43:04,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5469 to 5457. [2023-11-19 07:43:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5457 states, 4016 states have (on average 1.4285358565737052) internal successors, (5737), 4094 states have internal predecessors, (5737), 1253 states have call successors, (1253), 188 states have call predecessors, (1253), 187 states have return successors, (1247), 1237 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:43:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 8237 transitions. [2023-11-19 07:43:04,975 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 8237 transitions. Word has length 30 [2023-11-19 07:43:04,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:04,975 INFO L495 AbstractCegarLoop]: Abstraction has 5457 states and 8237 transitions. [2023-11-19 07:43:04,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:04,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 8237 transitions. [2023-11-19 07:43:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:43:04,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:04,983 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:43:04,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:04,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:04,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1987477065, now seen corresponding path program 1 times [2023-11-19 07:43:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:04,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865836761] [2023-11-19 07:43:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:43:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:43:05,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:05,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865836761] [2023-11-19 07:43:05,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865836761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:05,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:05,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589799541] [2023-11-19 07:43:05,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:05,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:05,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:05,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:05,618 INFO L87 Difference]: Start difference. First operand 5457 states and 8237 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:05,933 INFO L93 Difference]: Finished difference Result 5459 states and 8238 transitions. [2023-11-19 07:43:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-19 07:43:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:06,004 INFO L225 Difference]: With dead ends: 5459 [2023-11-19 07:43:06,005 INFO L226 Difference]: Without dead ends: 5456 [2023-11-19 07:43:06,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:06,015 INFO L413 NwaCegarLoop]: 5294 mSDtfsCounter, 5274 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:06,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 5294 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:06,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2023-11-19 07:43:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5456. [2023-11-19 07:43:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 4016 states have (on average 1.4282868525896415) internal successors, (5736), 4093 states have internal predecessors, (5736), 1252 states have call successors, (1252), 188 states have call predecessors, (1252), 187 states have return successors, (1247), 1237 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:43:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 8235 transitions. [2023-11-19 07:43:06,496 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 8235 transitions. Word has length 30 [2023-11-19 07:43:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:06,497 INFO L495 AbstractCegarLoop]: Abstraction has 5456 states and 8235 transitions. [2023-11-19 07:43:06,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 8235 transitions. [2023-11-19 07:43:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:43:06,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:06,504 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:43:06,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:06,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:06,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1483604249, now seen corresponding path program 1 times [2023-11-19 07:43:06,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:06,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896476063] [2023-11-19 07:43:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:06,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:43:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:43:06,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896476063] [2023-11-19 07:43:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896476063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:06,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326350746] [2023-11-19 07:43:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:06,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:06,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:06,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:06,905 INFO L87 Difference]: Start difference. First operand 5456 states and 8235 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:07,182 INFO L93 Difference]: Finished difference Result 5458 states and 8236 transitions. [2023-11-19 07:43:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-19 07:43:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:07,230 INFO L225 Difference]: With dead ends: 5458 [2023-11-19 07:43:07,230 INFO L226 Difference]: Without dead ends: 5455 [2023-11-19 07:43:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:07,237 INFO L413 NwaCegarLoop]: 5292 mSDtfsCounter, 5271 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5271 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:07,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5271 Valid, 5292 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2023-11-19 07:43:07,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5455. [2023-11-19 07:43:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 4016 states have (on average 1.4280378486055776) internal successors, (5735), 4092 states have internal predecessors, (5735), 1251 states have call successors, (1251), 188 states have call predecessors, (1251), 187 states have return successors, (1247), 1237 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:43:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 8233 transitions. [2023-11-19 07:43:07,614 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 8233 transitions. Word has length 31 [2023-11-19 07:43:07,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:07,615 INFO L495 AbstractCegarLoop]: Abstraction has 5455 states and 8233 transitions. [2023-11-19 07:43:07,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:07,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 8233 transitions. [2023-11-19 07:43:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 07:43:07,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:07,619 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:43:07,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:43:07,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:07,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1251556026, now seen corresponding path program 1 times [2023-11-19 07:43:07,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559945176] [2023-11-19 07:43:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:43:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:43:08,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:08,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559945176] [2023-11-19 07:43:08,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559945176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:08,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:08,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:08,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041464384] [2023-11-19 07:43:08,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:08,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:08,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:08,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:08,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:08,024 INFO L87 Difference]: Start difference. First operand 5455 states and 8233 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:08,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:08,322 INFO L93 Difference]: Finished difference Result 5457 states and 8234 transitions. [2023-11-19 07:43:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-19 07:43:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:08,377 INFO L225 Difference]: With dead ends: 5457 [2023-11-19 07:43:08,377 INFO L226 Difference]: Without dead ends: 5454 [2023-11-19 07:43:08,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:08,391 INFO L413 NwaCegarLoop]: 5290 mSDtfsCounter, 5268 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5268 SdHoareTripleChecker+Valid, 5290 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:08,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5268 Valid, 5290 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2023-11-19 07:43:08,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5454. [2023-11-19 07:43:08,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 4016 states have (on average 1.427788844621514) internal successors, (5734), 4091 states have internal predecessors, (5734), 1250 states have call successors, (1250), 188 states have call predecessors, (1250), 187 states have return successors, (1247), 1237 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:43:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 8231 transitions. [2023-11-19 07:43:08,839 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 8231 transitions. Word has length 32 [2023-11-19 07:43:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:08,843 INFO L495 AbstractCegarLoop]: Abstraction has 5454 states and 8231 transitions. [2023-11-19 07:43:08,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 8231 transitions. [2023-11-19 07:43:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:43:08,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:08,849 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:43:08,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:43:08,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:08,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:08,850 INFO L85 PathProgramCache]: Analyzing trace with hash 142183498, now seen corresponding path program 1 times [2023-11-19 07:43:08,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:08,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989432990] [2023-11-19 07:43:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:08,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat