./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.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_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/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_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/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_10390695-414b-49e6-a0cf-5aa93c131b63/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 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:04,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:04,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:23:04,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:04,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:04,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:04,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:04,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:04,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:04,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:04,624 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:04,625 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:04,626 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:04,628 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:04,628 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:04,628 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:04,629 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:04,629 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:04,630 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:04,630 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:04,631 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:04,631 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:04,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:04,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:23:04,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:04,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:04,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:23:04,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:04,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:23:04,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:23:04,655 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:04,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:04,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:04,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:04,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:04,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:04,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:04,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:23:04,659 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:04,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:04,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:04,663 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:23:04,663 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:04,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:04,664 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_10390695-414b-49e6-a0cf-5aa93c131b63/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2023-11-23 21:23:05,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:05,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:05,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:05,058 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:05,059 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:05,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:23:08,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:09,099 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:09,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:23:09,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/data/83290d021/4f32fcf8b318449da0a257d5dcfe68a5/FLAG525a6eeb6 [2023-11-23 21:23:09,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/data/83290d021/4f32fcf8b318449da0a257d5dcfe68a5 [2023-11-23 21:23:09,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:09,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:09,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:09,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:09,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:09,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:09" (1/1) ... [2023-11-23 21:23:09,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400e3be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:09, skipping insertion in model container [2023-11-23 21:23:09,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:09" (1/1) ... [2023-11-23 21:23:09,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:12,107 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_10390695-414b-49e6-a0cf-5aa93c131b63/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-23 21:23:12,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:12,296 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:12,466 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)); [4162-4163] [2023-11-23 21:23:12,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4172] [2023-11-23 21:23:12,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4179] [2023-11-23 21:23:12,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4210] [2023-11-23 21:23:12,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4213] [2023-11-23 21:23:12,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4216] [2023-11-23 21:23:12,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4219] [2023-11-23 21:23:12,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (65), "i" (12UL)); [4519-4520] [2023-11-23 21:23:12,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (67), "i" (12UL)); [4527-4528] [2023-11-23 21:23:12,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (68), "i" (12UL)); [4535-4536] [2023-11-23 21:23:12,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (98), "i" (12UL)); [4562-4563] [2023-11-23 21:23:12,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (99), "i" (12UL)); [4570-4571] [2023-11-23 21:23:12,812 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_10390695-414b-49e6-a0cf-5aa93c131b63/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-23 21:23:12,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:12,984 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:12,985 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:12,985 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:12,985 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:12,993 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:12,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12 WrapperNode [2023-11-23 21:23:12,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:12,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:12,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:12,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:13,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,383 INFO L138 Inliner]: procedures = 273, calls = 4220, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 9859 [2023-11-23 21:23:13,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:13,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:13,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:13,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:13,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:13,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:14,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:14,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:14,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:14,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:14,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (1/1) ... [2023-11-23 21:23:14,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:14,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:14,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:14,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10390695-414b-49e6-a0cf-5aa93c131b63/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:23:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:23:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-23 21:23:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-23 21:23:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:23:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:23:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:23:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:23:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:23:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:23:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:23:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-23 21:23:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-23 21:23:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-23 21:23:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-23 21:23:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-23 21:23:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-23 21:23:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:23:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:23:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-23 21:23:14,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-23 21:23:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-23 21:23:14,227 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-23 21:23:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:23:14,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:23:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-23 21:23:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-23 21:23:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-23 21:23:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-23 21:23:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-23 21:23:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-23 21:23:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-23 21:23:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-23 21:23:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:23:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:23:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:23:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:23:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:23:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:23:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-23 21:23:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-23 21:23:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-23 21:23:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-23 21:23:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-23 21:23:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-23 21:23:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-23 21:23:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-23 21:23:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:23:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:23:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-23 21:23:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-23 21:23:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-23 21:23:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-23 21:23:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:23:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:23:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-23 21:23:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-23 21:23:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-23 21:23:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-23 21:23:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-23 21:23:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-23 21:23:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-23 21:23:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-23 21:23:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-23 21:23:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-23 21:23:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:23:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:23:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-23 21:23:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-23 21:23:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:23:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-23 21:23:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-23 21:23:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-23 21:23:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-23 21:23:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-23 21:23:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-23 21:23:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:23:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-23 21:23:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-23 21:23:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-23 21:23:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-23 21:23:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:23:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:23:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-23 21:23:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-23 21:23:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 21:23:14,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 21:23:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:23:14,239 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:23:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:23:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-23 21:23:14,240 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-23 21:23:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:23:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:23:14,240 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:23:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:23:14,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:23:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:23:14,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:23:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:23:14,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:23:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-23 21:23:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-23 21:23:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:23:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:23:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-23 21:23:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-23 21:23:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-23 21:23:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-23 21:23:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 21:23:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 21:23:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:23:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:23:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:23:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-23 21:23:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-23 21:23:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-23 21:23:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-23 21:23:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:23:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-11-23 21:23:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-11-23 21:23:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:23:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-23 21:23:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-23 21:23:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-23 21:23:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-23 21:23:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:23:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:23:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-23 21:23:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-23 21:23:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:23:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:23:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-23 21:23:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-23 21:23:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-23 21:23:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-23 21:23:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:23:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:23:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-23 21:23:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-23 21:23:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-23 21:23:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-23 21:23:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:23:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:23:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:23:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-23 21:23:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-23 21:23:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-23 21:23:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-23 21:23:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-23 21:23:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-23 21:23:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:23:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:23:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 21:23:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 21:23:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:23:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-23 21:23:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-23 21:23:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-23 21:23:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-23 21:23:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:23:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:23:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-23 21:23:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-23 21:23:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-23 21:23:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-23 21:23:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:23:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:23:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:23:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:23:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-23 21:23:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-23 21:23:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-23 21:23:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-23 21:23:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-23 21:23:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-23 21:23:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:23:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:23:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:23:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:23:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-23 21:23:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-23 21:23:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-23 21:23:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-23 21:23:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-23 21:23:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-23 21:23:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-23 21:23:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-23 21:23:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:23:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:23:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:23:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:23:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:23:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:23:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-23 21:23:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-23 21:23:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:23:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-23 21:23:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-23 21:23:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-23 21:23:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-23 21:23:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:23:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:23:15,388 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:15,393 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:34,504 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:41,274 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:41,274 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:23:41,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:41 BoogieIcfgContainer [2023-11-23 21:23:41,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:41,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:41,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:41,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:41,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:09" (1/3) ... [2023-11-23 21:23:41,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aad9160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:41, skipping insertion in model container [2023-11-23 21:23:41,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:12" (2/3) ... [2023-11-23 21:23:41,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aad9160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:41, skipping insertion in model container [2023-11-23 21:23:41,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:41" (3/3) ... [2023-11-23 21:23:41,288 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:23:41,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:41,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:23:41,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:41,424 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;@268df6b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:41,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:23:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 2479 states, 1647 states have (on average 1.381906496660595) internal successors, (2276), 1672 states have internal predecessors, (2276), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) [2023-11-23 21:23:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:23:41,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:41,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:41,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:41,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:41,456 INFO L85 PathProgramCache]: Analyzing trace with hash 349067449, now seen corresponding path program 1 times [2023-11-23 21:23:41,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:41,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706875109] [2023-11-23 21:23:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:41,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:42,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:42,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706875109] [2023-11-23 21:23:42,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706875109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:42,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:42,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:42,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901066532] [2023-11-23 21:23:42,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:42,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:23:42,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:23:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:42,354 INFO L87 Difference]: Start difference. First operand has 2479 states, 1647 states have (on average 1.381906496660595) internal successors, (2276), 1672 states have internal predecessors, (2276), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 21:23:45,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:47,999 WARN L539 Checker$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 21:23:50,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:52,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:54,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:57,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []