./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/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_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/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_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/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 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:50,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:50,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:50,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:50,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:50,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:50,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:50,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:50,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:50,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:50,927 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:50,928 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:50,928 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:50,929 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:50,929 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:50,930 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:50,930 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:50,931 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:50,931 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:50,932 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:50,933 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:50,937 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:50,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:50,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:50,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:50,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:50,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:50,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:50,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:50,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:50,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:50,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:50,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:50,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:50,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:50,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:50,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:50,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:50,950 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:50,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:50,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:50,951 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:50,951 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:50,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:50,952 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_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae [2023-11-23 21:10:51,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:51,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:51,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:51,317 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:51,317 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:51,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-23 21:10:54,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:55,046 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:55,047 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-23 21:10:55,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/data/4be53dfb6/6c8debe9726247bbabdcb1dd24c7926b/FLAGa9b97d220 [2023-11-23 21:10:55,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/data/4be53dfb6/6c8debe9726247bbabdcb1dd24c7926b [2023-11-23 21:10:55,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:55,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:55,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:55,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:55,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:55,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:55" (1/1) ... [2023-11-23 21:10:55,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed3cc62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:55, skipping insertion in model container [2023-11-23 21:10:55,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:55" (1/1) ... [2023-11-23 21:10:55,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:57,705 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_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-23 21:10:57,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:57,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:57,934 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"); [3897] [2023-11-23 21:10:57,936 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)); [3905-3906] [2023-11-23 21:10:57,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3922] [2023-11-23 21:10:57,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-11-23 21:10:57,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3928] [2023-11-23 21:10:57,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3931] [2023-11-23 21:10:57,940 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): "ir" (i): "memory"); [3973-3974] [2023-11-23 21:10:57,941 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"); [3985-3986] [2023-11-23 21:10:57,941 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"); [3989-3990] [2023-11-23 21:10:57,942 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"); [3993-3994] [2023-11-23 21:10:57,942 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"); [3997-3998] [2023-11-23 21:10:57,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [4065] [2023-11-23 21:10:57,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4068] [2023-11-23 21:10:57,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4071] [2023-11-23 21:10:57,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4074] [2023-11-23 21:10:57,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4424] [2023-11-23 21:10:57,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4427] [2023-11-23 21:10:58,285 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_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-23 21:10:58,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:58,384 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:58,384 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:58,384 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:58,385 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:58,393 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:58,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58 WrapperNode [2023-11-23 21:10:58,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:58,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:58,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:58,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:58,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:58,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:58,929 INFO L138 Inliner]: procedures = 282, calls = 3119, calls flagged for inlining = 131, calls inlined = 122, statements flattened = 7698 [2023-11-23 21:10:58,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:58,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:58,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:58,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:58,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:58,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:59,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:59,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:59,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:59,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (1/1) ... [2023-11-23 21:10:59,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:59,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:59,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:59,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f5869-e31e-4ec6-8ee4-402e7a9a0ee7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:10:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-23 21:10:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-23 21:10:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:10:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:10:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-11-23 21:10:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-11-23 21:10:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2023-11-23 21:10:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2023-11-23 21:10:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-23 21:10:59,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-23 21:10:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-23 21:10:59,648 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-23 21:10:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:10:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:10:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:10:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:10:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:10:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:10:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2023-11-23 21:10:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2023-11-23 21:10:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-23 21:10:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-23 21:10:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:10:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:10:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:10:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:10:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-23 21:10:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-23 21:10:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-23 21:10:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-23 21:10:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:10:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:10:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2023-11-23 21:10:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2023-11-23 21:10:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2023-11-23 21:10:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2023-11-23 21:10:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2023-11-23 21:10:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2023-11-23 21:10:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:10:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:10:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-23 21:10:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-23 21:10:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:10:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-23 21:10:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-23 21:10:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2023-11-23 21:10:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2023-11-23 21:10:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-23 21:10:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-23 21:10:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:10:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-11-23 21:10:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-11-23 21:10:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2023-11-23 21:10:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2023-11-23 21:10:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:10:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:10:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:10:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 21:10:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 21:10:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:10:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:10:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2023-11-23 21:10:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2023-11-23 21:10:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:10:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2023-11-23 21:10:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2023-11-23 21:10:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:10:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:10:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:10:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:10:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:10:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:10:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2023-11-23 21:10:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2023-11-23 21:10:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2023-11-23 21:10:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2023-11-23 21:10:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2023-11-23 21:10:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2023-11-23 21:10:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-23 21:10:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-23 21:10:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:10:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:10:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:10:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:10:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2023-11-23 21:10:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2023-11-23 21:10:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:10:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:10:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 21:10:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 21:10:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2023-11-23 21:10:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2023-11-23 21:10:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-23 21:10:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-23 21:10:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:10:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:10:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:10:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2023-11-23 21:10:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2023-11-23 21:10:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:10:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:10:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2023-11-23 21:10:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2023-11-23 21:10:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2023-11-23 21:10:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2023-11-23 21:10:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:10:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2023-11-23 21:10:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2023-11-23 21:10:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2023-11-23 21:10:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2023-11-23 21:10:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2023-11-23 21:10:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2023-11-23 21:10:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2023-11-23 21:10:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2023-11-23 21:10:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:10:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:10:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-11-23 21:10:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-11-23 21:10:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-23 21:10:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-23 21:10:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2023-11-23 21:10:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2023-11-23 21:10:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-23 21:10:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-23 21:10:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:10:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:10:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2023-11-23 21:10:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2023-11-23 21:10:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:10:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:10:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:10:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:10:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:10:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:10:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:10:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2023-11-23 21:10:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2023-11-23 21:10:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:10:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:10:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:10:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-23 21:10:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-23 21:10:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:10:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:10:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:10:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:10:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-11-23 21:10:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-11-23 21:10:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2023-11-23 21:10:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2023-11-23 21:10:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:10:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:10:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-23 21:10:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-23 21:10:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2023-11-23 21:10:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2023-11-23 21:10:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:10:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:10:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2023-11-23 21:10:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2023-11-23 21:10:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:10:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:10:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:10:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:10:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-23 21:10:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-23 21:10:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:10:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:10:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2023-11-23 21:10:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2023-11-23 21:10:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2023-11-23 21:10:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2023-11-23 21:10:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:00,609 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:00,614 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:10,953 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:16,873 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:16,873 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:11:16,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:16 BoogieIcfgContainer [2023-11-23 21:11:16,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:16,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:16,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:16,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:16,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:55" (1/3) ... [2023-11-23 21:11:16,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e21b125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:16, skipping insertion in model container [2023-11-23 21:11:16,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:58" (2/3) ... [2023-11-23 21:11:16,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e21b125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:16, skipping insertion in model container [2023-11-23 21:11:16,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:16" (3/3) ... [2023-11-23 21:11:16,889 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-23 21:11:16,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:16,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:17,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:17,022 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=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;@5976fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:17,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 1426 states, 960 states have (on average 1.428125) internal successors, (1371), 982 states have internal predecessors, (1371), 384 states have call successors, (384), 80 states have call predecessors, (384), 80 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-23 21:11:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:11:17,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:17,045 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:17,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:17,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:17,054 INFO L85 PathProgramCache]: Analyzing trace with hash -891645611, now seen corresponding path program 1 times [2023-11-23 21:11:17,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:17,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493940562] [2023-11-23 21:11:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:17,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:11:18,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493940562] [2023-11-23 21:11:18,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493940562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:18,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:18,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:18,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047646310] [2023-11-23 21:11:18,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:18,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:18,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:18,168 INFO L87 Difference]: Start difference. First operand has 1426 states, 960 states have (on average 1.428125) internal successors, (1371), 982 states have internal predecessors, (1371), 384 states have call successors, (384), 80 states have call predecessors, (384), 80 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:11:22,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:24,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:26,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:11:28,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:31,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:11:33,850 WARN L539 Checker$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 21:11:34,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:34,154 INFO L93 Difference]: Finished difference Result 2812 states and 4232 transitions. [2023-11-23 21:11:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 21:11:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:34,191 INFO L225 Difference]: With dead ends: 2812 [2023-11-23 21:11:34,191 INFO L226 Difference]: Without dead ends: 1422 [2023-11-23 21:11:34,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:34,210 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 2117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:34,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 1801 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2023-11-23 21:11:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2023-11-23 21:11:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2023-11-23 21:11:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 959 states have (on average 1.4254431699687173) internal successors, (1367), 978 states have internal predecessors, (1367), 383 states have call successors, (383), 80 states have call predecessors, (383), 79 states have return successors, (376), 376 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-23 21:11:34,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2126 transitions. [2023-11-23 21:11:34,410 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2126 transitions. Word has length 20 [2023-11-23 21:11:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:34,412 INFO L495 AbstractCegarLoop]: Abstraction has 1422 states and 2126 transitions. [2023-11-23 21:11:34,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:11:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2126 transitions. [2023-11-23 21:11:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:11:34,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:34,415 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:34,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:11:34,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:34,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1871965459, now seen corresponding path program 1 times [2023-11-23 21:11:34,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:34,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020302669] [2023-11-23 21:11:34,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:11:34,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020302669] [2023-11-23 21:11:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020302669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:34,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:34,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:34,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509172160] [2023-11-23 21:11:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:34,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:34,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:34,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:34,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:34,783 INFO L87 Difference]: Start difference. First operand 1422 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:11:37,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:39,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:42,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:45,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []