./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--scsi--st.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire --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 eca061443980e8d0803d9e641f2f399e16662610ff9edce1dac481c57666d01d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:35,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:35,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:30:35,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:35,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:35,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:35,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:35,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:35,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:35,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:35,427 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:35,428 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:35,428 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:35,429 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:35,430 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:35,431 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:35,432 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:35,432 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:35,437 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:35,438 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:35,438 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:35,439 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:35,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:35,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:35,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:35,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:35,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:35,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:35,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:35,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:35,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:35,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:35,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:35,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:35,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:35,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:35,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:35,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:35,448 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:35,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:35,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:35,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:35,452 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:35,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:35,453 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_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca061443980e8d0803d9e641f2f399e16662610ff9edce1dac481c57666d01d [2023-11-23 21:30:35,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:35,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:35,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:35,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:35,931 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:35,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i [2023-11-23 21:30:39,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:40,218 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:40,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i [2023-11-23 21:30:40,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/data/ba71a3d5b/3c76237ba9b24432b76da3cc4d3e2353/FLAGb5cc62c30 [2023-11-23 21:30:40,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/data/ba71a3d5b/3c76237ba9b24432b76da3cc4d3e2353 [2023-11-23 21:30:40,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:40,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:40,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:40,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:40,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:40,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:40" (1/1) ... [2023-11-23 21:30:40,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d15f75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:40, skipping insertion in model container [2023-11-23 21:30:40,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:40" (1/1) ... [2023-11-23 21:30:40,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:43,481 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_f93a1268-9905-4f7a-970f-87dbe8f32b1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i[342799,342812] [2023-11-23 21:30:43,544 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 21:30:43,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:43,614 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:43,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4416] [2023-11-23 21:30:43,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4418] [2023-11-23 21:30:43,787 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"); [4428] [2023-11-23 21:30:43,788 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)); [4436-4437] [2023-11-23 21:30:43,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4456] [2023-11-23 21:30:43,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4459] [2023-11-23 21:30:43,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4462] [2023-11-23 21:30:43,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4465] [2023-11-23 21:30:43,794 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"); [4501-4502] [2023-11-23 21:30:43,795 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"); [4513-4514] [2023-11-23 21:30:43,795 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"); [4517-4518] [2023-11-23 21:30:43,796 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"); [4521-4522] [2023-11-23 21:30:43,796 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"); [4525-4526] [2023-11-23 21:30:43,797 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; addq %1,%0": "=m" (v->counter): "er" (i), "m" (v->counter)); [4546-4547] [2023-11-23 21:30:43,798 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; incq %0": "=m" (v->counter): "m" (v->counter)); [4554] [2023-11-23 21:30:43,799 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; decq %0": "=m" (v->counter): "m" (v->counter)); [4561] [2023-11-23 21:30:43,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [4592] [2023-11-23 21:30:43,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [4595] [2023-11-23 21:30:43,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [4597] [2023-11-23 21:30:43,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [4602] [2023-11-23 21:30:43,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [4605] [2023-11-23 21:30:43,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4607] [2023-11-23 21:30:43,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [4612] [2023-11-23 21:30:43,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [4615] [2023-11-23 21:30:43,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4617] [2023-11-23 21:30:43,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4622] [2023-11-23 21:30:43,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4625] [2023-11-23 21:30:43,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [4627] [2023-11-23 21:30:43,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4688] [2023-11-23 21:30:44,233 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_f93a1268-9905-4f7a-970f-87dbe8f32b1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i[342799,342812] [2023-11-23 21:30:44,239 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 21:30:44,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:44,381 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:44,381 WARN L675 CHandler]: The function ldv_xmalloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:44,382 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:44,382 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:44,382 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:44,390 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:44,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44 WrapperNode [2023-11-23 21:30:44,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:44,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:44,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:44,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:44,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:44,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:44,944 INFO L138 Inliner]: procedures = 266, calls = 4555, calls flagged for inlining = 130, calls inlined = 123, statements flattened = 10584 [2023-11-23 21:30:44,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:44,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:44,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:44,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:44,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:44,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:45,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:45,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:45,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:45,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (1/1) ... [2023-11-23 21:30:45,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:45,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:45,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f93a1268-9905-4f7a-970f-87dbe8f32b1f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_print_sense [2023-11-23 21:30:45,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_print_sense [2023-11-23 21:30:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:30:45,901 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:30:45,901 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:30:45,901 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-23 21:30:45,901 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-23 21:30:45,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:30:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:30:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-11-23 21:30:45,902 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-11-23 21:30:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:30:45,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:30:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:30:45,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:30:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2023-11-23 21:30:45,903 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2023-11-23 21:30:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-23 21:30:45,903 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-23 21:30:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-23 21:30:45,904 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-23 21:30:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:30:45,904 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:30:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:30:45,905 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:30:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:30:45,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:30:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2023-11-23 21:30:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2023-11-23 21:30:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 21:30:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 21:30:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:30:45,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:30:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:30:45,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:30:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-23 21:30:45,909 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-23 21:30:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:30:45,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:30:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:45,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2023-11-23 21:30:45,925 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2023-11-23 21:30:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2023-11-23 21:30:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2023-11-23 21:30:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2023-11-23 21:30:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2023-11-23 21:30:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-23 21:30:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-23 21:30:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:30:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:30:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2023-11-23 21:30:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2023-11-23 21:30:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2023-11-23 21:30:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2023-11-23 21:30:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-23 21:30:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-23 21:30:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:30:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-11-23 21:30:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-11-23 21:30:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:30:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2023-11-23 21:30:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2023-11-23 21:30:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:30:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:30:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:30:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:30:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:30:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_inc [2023-11-23 21:30:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_inc [2023-11-23 21:30:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:30:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:30:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:30:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2023-11-23 21:30:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2023-11-23 21:30:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:30:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2023-11-23 21:30:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2023-11-23 21:30:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:30:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:30:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:30:45,934 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:30:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2023-11-23 21:30:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2023-11-23 21:30:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2023-11-23 21:30:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2023-11-23 21:30:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2023-11-23 21:30:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2023-11-23 21:30:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 21:30:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 21:30:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-23 21:30:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-23 21:30:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:30:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:30:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:30:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:30:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:30:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:30:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2023-11-23 21:30:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2023-11-23 21:30:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:30:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:30:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2023-11-23 21:30:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2023-11-23 21:30:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:30:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2023-11-23 21:30:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2023-11-23 21:30:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:30:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:30:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2023-11-23 21:30:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2023-11-23 21:30:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:30:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2023-11-23 21:30:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2023-11-23 21:30:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure st_log_options [2023-11-23 21:30:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure st_log_options [2023-11-23 21:30:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:30:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2023-11-23 21:30:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2023-11-23 21:30:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2023-11-23 21:30:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2023-11-23 21:30:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2023-11-23 21:30:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2023-11-23 21:30:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2023-11-23 21:30:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2023-11-23 21:30:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:30:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:30:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-11-23 21:30:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-11-23 21:30:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-23 21:30:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-23 21:30:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2023-11-23 21:30:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2023-11-23 21:30:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:30:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:30:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2023-11-23 21:30:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2023-11-23 21:30:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:30:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:30:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:30:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:30:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:30:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:30:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:30:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 21:30:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 21:30:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:30:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:30:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:30:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:30:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:30:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:30:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:30:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure deb_space_print [2023-11-23 21:30:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure deb_space_print [2023-11-23 21:30:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-23 21:30:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-23 21:30:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:30:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:30:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:30:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:30:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2023-11-23 21:30:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2023-11-23 21:30:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-11-23 21:30:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-11-23 21:30:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2023-11-23 21:30:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2023-11-23 21:30:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:30:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:30:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-23 21:30:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-23 21:30:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2023-11-23 21:30:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2023-11-23 21:30:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush [2023-11-23 21:30:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush [2023-11-23 21:30:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:30:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:30:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2023-11-23 21:30:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2023-11-23 21:30:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:30:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:30:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:30:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:30:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure st_write [2023-11-23 21:30:45,953 INFO L138 BoogieDeclarations]: Found implementation of procedure st_write [2023-11-23 21:30:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:30:45,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:30:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2023-11-23 21:30:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2023-11-23 21:30:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2023-11-23 21:30:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2023-11-23 21:30:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:30:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:30:47,090 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:47,094 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:47,234 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:30:59,838 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:07,292 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:07,292 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:31:07,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:07 BoogieIcfgContainer [2023-11-23 21:31:07,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:07,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:07,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:07,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:07,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:40" (1/3) ... [2023-11-23 21:31:07,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc516e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:07, skipping insertion in model container [2023-11-23 21:31:07,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:44" (2/3) ... [2023-11-23 21:31:07,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc516e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:07, skipping insertion in model container [2023-11-23 21:31:07,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:07" (3/3) ... [2023-11-23 21:31:07,308 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--st.ko-entry_point.cil.out.i [2023-11-23 21:31:07,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:07,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:31:07,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:07,455 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a4b56d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:07,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:31:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 2246 states, 1496 states have (on average 1.4151069518716577) internal successors, (2117), 1538 states have internal predecessors, (2117), 661 states have call successors, (661), 88 states have call predecessors, (661), 87 states have return successors, (638), 635 states have call predecessors, (638), 638 states have call successors, (638) [2023-11-23 21:31:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-11-23 21:31:07,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:07,546 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 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] [2023-11-23 21:31:07,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:07,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1144425520, now seen corresponding path program 1 times [2023-11-23 21:31:07,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:07,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591214663] [2023-11-23 21:31:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:07,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:10,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2023-11-23 21:31:10,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:10,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591214663] [2023-11-23 21:31:10,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591214663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:10,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:10,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541091886] [2023-11-23 21:31:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:10,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:10,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:10,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:10,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:10,090 INFO L87 Difference]: Start difference. First operand has 2246 states, 1496 states have (on average 1.4151069518716577) internal successors, (2117), 1538 states have internal predecessors, (2117), 661 states have call successors, (661), 88 states have call predecessors, (661), 87 states have return successors, (638), 635 states have call predecessors, (638), 638 states have call successors, (638) 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, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-11-23 21:31:12,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:14,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:17,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:31:19,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:21,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:24,077 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 []