./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 cf1a7837 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_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/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_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:10:36,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:36,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:10:36,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:36,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:37,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:37,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:37,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:37,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:37,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:37,039 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:37,040 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:37,040 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:37,042 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:37,042 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:37,043 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:37,043 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:37,043 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:37,044 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:37,044 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:37,045 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:37,045 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:37,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:37,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:37,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:37,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:37,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:37,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:37,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:37,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:37,051 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:37,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:37,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:37,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:37,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:37,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:37,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:37,053 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:37,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:37,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:37,060 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:37,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:37,060 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_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae [2023-11-12 00:10:37,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:37,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:37,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:37,449 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:37,450 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:37,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-12 00:10:40,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:41,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:41,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-12 00:10:41,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/data/58f2e93ac/0d9a6ff3fafc48199cd287218c8d4dfe/FLAG7bb2a5308 [2023-11-12 00:10:41,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/data/58f2e93ac/0d9a6ff3fafc48199cd287218c8d4dfe [2023-11-12 00:10:41,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:41,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:41,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:41,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:41,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:41,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:41" (1/1) ... [2023-11-12 00:10:41,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51389741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:41, skipping insertion in model container [2023-11-12 00:10:41,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:41" (1/1) ... [2023-11-12 00:10:41,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:43,779 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_05c6e0ea-3c54-468f-8710-4788e1e0a423/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-12 00:10:43,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:43,955 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:44,073 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] [2023-11-12 00:10:44,076 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] [2023-11-12 00:10:44,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3922] [2023-11-12 00:10:44,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-11-12 00:10:44,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3928] [2023-11-12 00:10:44,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3931] [2023-11-12 00:10:44,081 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] [2023-11-12 00:10:44,082 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] [2023-11-12 00:10:44,082 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] [2023-11-12 00:10:44,084 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] [2023-11-12 00:10:44,085 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] [2023-11-12 00:10:44,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [4065] [2023-11-12 00:10:44,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4068] [2023-11-12 00:10:44,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4071] [2023-11-12 00:10:44,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4074] [2023-11-12 00:10:44,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4424] [2023-11-12 00:10:44,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4427] [2023-11-12 00:10:44,455 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_05c6e0ea-3c54-468f-8710-4788e1e0a423/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-12 00:10:44,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:44,598 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:44,599 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:44,599 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:44,599 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:44,607 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:44,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44 WrapperNode [2023-11-12 00:10:44,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:44,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:44,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:44,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:44,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:44,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:44,995 INFO L138 Inliner]: procedures = 282, calls = 3119, calls flagged for inlining = 131, calls inlined = 122, statements flattened = 7698 [2023-11-12 00:10:44,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:44,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:44,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:44,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:45,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:45,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:45,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:45,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:45,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (1/1) ... [2023-11-12 00:10:45,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:45,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:45,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:45,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c6e0ea-3c54-468f-8710-4788e1e0a423/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 00:10:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-12 00:10:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-12 00:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-11-12 00:10:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-11-12 00:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2023-11-12 00:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2023-11-12 00:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-12 00:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-12 00:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-12 00:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-12 00:10:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-12 00:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-12 00:10:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:10:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2023-11-12 00:10:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2023-11-12 00:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-12 00:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-12 00:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-12 00:10:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-12 00:10:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-12 00:10:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-12 00:10:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:10:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2023-11-12 00:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2023-11-12 00:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2023-11-12 00:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2023-11-12 00:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2023-11-12 00:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2023-11-12 00:10:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:10:45,637 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:10:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-12 00:10:45,637 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-12 00:10:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:10:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-12 00:10:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-12 00:10:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2023-11-12 00:10:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2023-11-12 00:10:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-12 00:10:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-12 00:10:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-11-12 00:10:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-11-12 00:10:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2023-11-12 00:10:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2023-11-12 00:10:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-12 00:10:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-12 00:10:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-12 00:10:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-12 00:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-12 00:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-12 00:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-12 00:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2023-11-12 00:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2023-11-12 00:10:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2023-11-12 00:10:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2023-11-12 00:10:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 00:10:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 00:10:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:10:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:10:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-12 00:10:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-12 00:10:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2023-11-12 00:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2023-11-12 00:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2023-11-12 00:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2023-11-12 00:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2023-11-12 00:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2023-11-12 00:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-12 00:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-12 00:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2023-11-12 00:10:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2023-11-12 00:10:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:10:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:10:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 00:10:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 00:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2023-11-12 00:10:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2023-11-12 00:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-12 00:10:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-12 00:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 00:10:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 00:10:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2023-11-12 00:10:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2023-11-12 00:10:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 00:10:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 00:10:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2023-11-12 00:10:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2023-11-12 00:10:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:10:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2023-11-12 00:10:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2023-11-12 00:10:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2023-11-12 00:10:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2023-11-12 00:10:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2023-11-12 00:10:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2023-11-12 00:10:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2023-11-12 00:10:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2023-11-12 00:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2023-11-12 00:10:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2023-11-12 00:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:10:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-11-12 00:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-11-12 00:10:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-12 00:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-12 00:10:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2023-11-12 00:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2023-11-12 00:10:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-12 00:10:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-12 00:10:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:10:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:10:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2023-11-12 00:10:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2023-11-12 00:10:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 00:10:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 00:10:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-12 00:10:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-12 00:10:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:10:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:10:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2023-11-12 00:10:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2023-11-12 00:10:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 00:10:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 00:10:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-12 00:10:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-12 00:10:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-12 00:10:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-12 00:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-11-12 00:10:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-11-12 00:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2023-11-12 00:10:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2023-11-12 00:10:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-12 00:10:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-12 00:10:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-12 00:10:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-12 00:10:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2023-11-12 00:10:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2023-11-12 00:10:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:10:45,659 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:10:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2023-11-12 00:10:45,659 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2023-11-12 00:10:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-12 00:10:45,659 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-12 00:10:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-12 00:10:45,660 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-12 00:10:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-12 00:10:45,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-12 00:10:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:10:45,660 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:10:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2023-11-12 00:10:45,661 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2023-11-12 00:10:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2023-11-12 00:10:45,661 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2023-11-12 00:10:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:45,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:46,490 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:46,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:57,005 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:03,669 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:03,669 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:11:03,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:03 BoogieIcfgContainer [2023-11-12 00:11:03,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:03,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:03,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:03,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:03,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:41" (1/3) ... [2023-11-12 00:11:03,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2a3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:03, skipping insertion in model container [2023-11-12 00:11:03,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:44" (2/3) ... [2023-11-12 00:11:03,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2a3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:03, skipping insertion in model container [2023-11-12 00:11:03,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:03" (3/3) ... [2023-11-12 00:11:03,689 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-12 00:11:03,709 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:03,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:11:03,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:03,822 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;@4caa01a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:03,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:11:03,835 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) [2023-11-12 00:11:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:11:03,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:03,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:03,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash 831551608, now seen corresponding path program 1 times [2023-11-12 00:11:03,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:03,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267730570] [2023-11-12 00:11:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:11:04,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267730570] [2023-11-12 00:11:04,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267730570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:04,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:04,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:04,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54477017] [2023-11-12 00:11:04,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:04,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:04,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:04,732 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) [2023-11-12 00:11:06,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:08,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:10,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:13,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-12 00:11:18,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-12 00:11:20,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:21,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:21,430 INFO L93 Difference]: Finished difference Result 2812 states and 4232 transitions. [2023-11-12 00:11:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:21,433 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 [2023-11-12 00:11:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:21,466 INFO L225 Difference]: With dead ends: 2812 [2023-11-12 00:11:21,467 INFO L226 Difference]: Without dead ends: 1422 [2023-11-12 00:11:21,479 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 [2023-11-12 00:11:21,483 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 2117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:21,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 1801 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2023-11-12 00:11:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2023-11-12 00:11:21,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2023-11-12 00:11:21,655 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) [2023-11-12 00:11:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2126 transitions. [2023-11-12 00:11:21,676 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2126 transitions. Word has length 20 [2023-11-12 00:11:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:21,678 INFO L495 AbstractCegarLoop]: Abstraction has 1422 states and 2126 transitions. [2023-11-12 00:11:21,680 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) [2023-11-12 00:11:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2126 transitions. [2023-11-12 00:11:21,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:11:21,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:21,683 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] [2023-11-12 00:11:21,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:11:21,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:21,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 7540778, now seen corresponding path program 1 times [2023-11-12 00:11:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389486951] [2023-11-12 00:11:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:21,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:11:21,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389486951] [2023-11-12 00:11:21,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389486951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:21,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:21,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15601586] [2023-11-12 00:11:21,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:21,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:21,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:21,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:21,995 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) [2023-11-12 00:11:25,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:29,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []