./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 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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:41:55,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:41:55,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:41:55,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:41:55,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:41:55,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:41:55,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:41:55,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:41:55,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:41:55,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:41:55,438 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:41:55,440 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:41:55,440 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:41:55,442 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:41:55,442 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:41:55,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:41:55,443 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:41:55,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:41:55,445 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:41:55,446 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:41:55,446 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:41:55,447 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:41:55,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:41:55,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:41:55,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:41:55,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:41:55,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:41:55,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:41:55,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:41:55,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:41:55,452 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:41:55,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:41:55,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:41:55,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:41:55,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:41:55,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:41:55,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:41:55,454 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:41:55,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:41:55,455 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:41:55,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:41:55,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:41:55,456 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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2023-11-12 00:41:55,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:41:55,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:41:55,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:41:55,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:41:55,815 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:41:55,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-12 00:41:58,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:41:59,557 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:41:59,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-12 00:41:59,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/data/4c2b30fd3/0f846a6b0ad34998b6afa0fb3c13538f/FLAG7c92f8340 [2023-11-12 00:41:59,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/data/4c2b30fd3/0f846a6b0ad34998b6afa0fb3c13538f [2023-11-12 00:41:59,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:41:59,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:41:59,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:41:59,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:41:59,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:41:59,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:41:59" (1/1) ... [2023-11-12 00:41:59,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db12c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:41:59, skipping insertion in model container [2023-11-12 00:41:59,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:41:59" (1/1) ... [2023-11-12 00:41:59,893 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:02,256 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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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] [2023-11-12 00:42:02,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:02,449 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:02,618 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] [2023-11-12 00:42:02,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4172] [2023-11-12 00:42:02,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4179] [2023-11-12 00:42:02,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4210] [2023-11-12 00:42:02,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4213] [2023-11-12 00:42:02,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4216] [2023-11-12 00:42:02,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4219] [2023-11-12 00:42:02,652 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] [2023-11-12 00:42:02,653 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] [2023-11-12 00:42:02,653 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] [2023-11-12 00:42:02,655 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] [2023-11-12 00:42:02,656 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] [2023-11-12 00:42:03,140 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_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/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] [2023-11-12 00:42:03,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:03,291 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:03,291 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:03,292 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:03,292 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:03,300 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:03,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03 WrapperNode [2023-11-12 00:42:03,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:03,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:03,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:03,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:03,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,864 INFO L138 Inliner]: procedures = 273, calls = 4220, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 9859 [2023-11-12 00:42:03,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:03,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:03,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:03,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:03,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:04,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:04,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:04,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:04,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:04,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:04,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:04,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4ceee9-dc14-4546-ba0b-c483abeec8c3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-12 00:42:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-12 00:42:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-12 00:42:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-12 00:42:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 00:42:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 00:42:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:42:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:42:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 00:42:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:42:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:42:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-12 00:42:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-12 00:42:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-12 00:42:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-12 00:42:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-12 00:42:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-12 00:42:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:42:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:42:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-12 00:42:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-12 00:42:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-12 00:42:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-12 00:42:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:42:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:42:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-12 00:42:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-12 00:42:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-12 00:42:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-12 00:42:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-12 00:42:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-12 00:42:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-12 00:42:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-12 00:42:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:42:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:42:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:42:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:42:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-12 00:42:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-12 00:42:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-12 00:42:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-12 00:42:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-12 00:42:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-12 00:42:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-12 00:42:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-12 00:42:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-12 00:42:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-12 00:42:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:42:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:42:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-12 00:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-12 00:42:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-12 00:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-12 00:42:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:42:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-12 00:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-12 00:42:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-12 00:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-12 00:42:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-12 00:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-12 00:42:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-12 00:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-12 00:42:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-12 00:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-12 00:42:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:42:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:42:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-12 00:42:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-12 00:42:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:42:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-12 00:42:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-12 00:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-12 00:42:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-12 00:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-12 00:42:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-12 00:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-12 00:42:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-12 00:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-12 00:42:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-12 00:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-12 00:42:04,803 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-12 00:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-12 00:42:04,803 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-12 00:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-12 00:42:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-12 00:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-12 00:42:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-12 00:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-12 00:42:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-12 00:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 00:42:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 00:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:42:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:42:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:42:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:42:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:42:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-12 00:42:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-12 00:42:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:42:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-12 00:42:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-12 00:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-12 00:42:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-12 00:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 00:42:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 00:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 00:42:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 00:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-12 00:42:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-12 00:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-12 00:42:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-12 00:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-11-12 00:42:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-11-12 00:42:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:42:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-12 00:42:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-12 00:42:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-12 00:42:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-12 00:42:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:42:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:42:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-12 00:42:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-12 00:42:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-12 00:42:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-12 00:42:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-12 00:42:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-12 00:42:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-12 00:42:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-12 00:42:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:42:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:42:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-12 00:42:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-12 00:42:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-12 00:42:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-12 00:42:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:42:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 00:42:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 00:42:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-12 00:42:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-12 00:42:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-12 00:42:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-12 00:42:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-12 00:42:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-12 00:42:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:42:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:42:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-12 00:42:04,881 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-12 00:42:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-12 00:42:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-12 00:42:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 00:42:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-12 00:42:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-12 00:42:04,882 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-12 00:42:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-12 00:42:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-12 00:42:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-12 00:42:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-12 00:42:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:42:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:42:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-12 00:42:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-12 00:42:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:42:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:42:06,103 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:06,107 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:26,989 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:34,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:34,533 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:42:34,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:34 BoogieIcfgContainer [2023-11-12 00:42:34,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:34,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:34,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:34,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:34,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:41:59" (1/3) ... [2023-11-12 00:42:34,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511279a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:34, skipping insertion in model container [2023-11-12 00:42:34,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (2/3) ... [2023-11-12 00:42:34,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511279a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:34, skipping insertion in model container [2023-11-12 00:42:34,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:34" (3/3) ... [2023-11-12 00:42:34,552 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-12 00:42:34,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:34,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:42:34,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:42:34,716 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;@29120b64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:42:34,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:42:34,732 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) [2023-11-12 00:42:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 00:42:34,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:34,744 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] [2023-11-12 00:42:34,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:34,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:34,752 INFO L85 PathProgramCache]: Analyzing trace with hash 633125330, now seen corresponding path program 1 times [2023-11-12 00:42:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:34,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479895460] [2023-11-12 00:42:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:42:35,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:35,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479895460] [2023-11-12 00:42:35,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479895460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:35,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:42:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052740932] [2023-11-12 00:42:35,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:35,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:42:35,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:35,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:42:35,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:42:35,651 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) [2023-11-12 00:42:39,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:41,449 WARN L539 Checker$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 00:42:44,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:46,050 WARN L539 Checker$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 00:42:48,056 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 []