./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/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_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/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_dc1204fb-9842-4163-9970-0bba55a690af/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 bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:55,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:56,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:43:56,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:56,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:56,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:56,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:56,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:56,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:56,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:56,078 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:56,078 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:56,079 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:56,081 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:43:56,081 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:56,081 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:56,082 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:43:56,082 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:43:56,083 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:56,083 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:43:56,084 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:43:56,084 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:43:56,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:56,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:43:56,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:43:56,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:56,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:43:56,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:56,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:43:56,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:43:56,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:56,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:56,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:56,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:56,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:56,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:56,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:43:56,092 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:43:56,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:43:56,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:43:56,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:56,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:56,093 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_dc1204fb-9842-4163-9970-0bba55a690af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 [2023-11-12 00:43:56,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:56,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:56,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:56,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:56,429 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:56,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-12 00:43:59,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:00,303 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:00,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-12 00:44:00,370 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/data/1c5c739e8/d789f48d6b3842a1909650d9bc2880a7/FLAGab007292c [2023-11-12 00:44:00,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/data/1c5c739e8/d789f48d6b3842a1909650d9bc2880a7 [2023-11-12 00:44:00,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:00,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:00,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:00,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:00,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:00,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:00" (1/1) ... [2023-11-12 00:44:00,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c09add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:00, skipping insertion in model container [2023-11-12 00:44:00,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:00" (1/1) ... [2023-11-12 00:44:00,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:03,233 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2023-11-12 00:44:03,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:03,350 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:03,530 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)); [4668-4669] [2023-11-12 00:44:03,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4678] [2023-11-12 00:44:03,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4685] [2023-11-12 00:44:03,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4728] [2023-11-12 00:44:03,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4731] [2023-11-12 00:44:03,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4734] [2023-11-12 00:44:03,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4737] [2023-11-12 00:44:03,552 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" (90), "i" (12UL)); [5080-5081] [2023-11-12 00:44:03,552 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" (92), "i" (12UL)); [5088-5089] [2023-11-12 00:44:03,553 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" (93), "i" (12UL)); [5096-5097] [2023-11-12 00:44:03,554 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" (123), "i" (12UL)); [5123-5124] [2023-11-12 00:44:03,554 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" (124), "i" (12UL)); [5131-5132] [2023-11-12 00:44:03,941 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_dc1204fb-9842-4163-9970-0bba55a690af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2023-11-12 00:44:03,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:04,117 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:04,118 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:04,118 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:04,118 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:04,126 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:04,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04 WrapperNode [2023-11-12 00:44:04,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:04,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:04,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:04,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:04,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:04,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:04,628 INFO L138 Inliner]: procedures = 247, calls = 4219, calls flagged for inlining = 107, calls inlined = 102, statements flattened = 10490 [2023-11-12 00:44:04,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:04,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:04,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:04,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:04,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:04,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:04,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:04,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:05,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:05,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:05,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:05,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (1/1) ... [2023-11-12 00:44:05,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:05,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:05,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:05,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1204fb-9842-4163-9970-0bba55a690af/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-12 00:44:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-12 00:44:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-12 00:44:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-12 00:44:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 00:44:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 00:44:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:44:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:44:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 00:44:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:44:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:44:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:44:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:44:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:44:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:44:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-12 00:44:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-12 00:44:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-12 00:44:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-12 00:44:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-12 00:44:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-12 00:44:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:44:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:44:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-12 00:44:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-12 00:44:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-12 00:44:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-12 00:44:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:44:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:44:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-12 00:44:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-12 00:44:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-12 00:44:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-12 00:44:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-12 00:44:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-12 00:44:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:44:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:44:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:44:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:44:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-12 00:44:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-12 00:44:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-12 00:44:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-12 00:44:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-12 00:44:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-12 00:44:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-12 00:44:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-12 00:44:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:44:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:44:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-12 00:44:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-12 00:44:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-12 00:44:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-12 00:44:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-12 00:44:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-12 00:44:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-12 00:44:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:44:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-12 00:44:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-12 00:44:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-12 00:44:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-12 00:44:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-12 00:44:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-12 00:44:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:44:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-12 00:44:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-12 00:44:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-12 00:44:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-12 00:44:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:44:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:44:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-12 00:44:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-12 00:44:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-12 00:44:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-12 00:44:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-12 00:44:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-12 00:44:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:44:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-12 00:44:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-12 00:44:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:44:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:44:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:44:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:44:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-12 00:44:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-12 00:44:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:44:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:44:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-12 00:44:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-12 00:44:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 00:44:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 00:44:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-12 00:44:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-12 00:44:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:44:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-12 00:44:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-12 00:44:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 00:44:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-12 00:44:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-12 00:44:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-12 00:44:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-12 00:44:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:44:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:44:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-12 00:44:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-12 00:44:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-12 00:44:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-12 00:44:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-12 00:44:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-12 00:44:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-12 00:44:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-12 00:44:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:44:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:44:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-12 00:44:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-12 00:44:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-12 00:44:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-12 00:44:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:44:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 00:44:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 00:44:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-12 00:44:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-12 00:44:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-12 00:44:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-12 00:44:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-12 00:44:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-12 00:44:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:44:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:44:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:44:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:44:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-12 00:44:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-12 00:44:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:44:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-12 00:44:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-12 00:44:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:44:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:44:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-12 00:44:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 00:44:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-12 00:44:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2023-11-12 00:44:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-12 00:44:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-12 00:44:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-12 00:44:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-12 00:44:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2023-11-12 00:44:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-12 00:44:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-12 00:44:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-12 00:44:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-12 00:44:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:44:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:44:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-12 00:44:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-12 00:44:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-12 00:44:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-12 00:44:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-12 00:44:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-12 00:44:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-12 00:44:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-12 00:44:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-12 00:44:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-12 00:44:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-12 00:44:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-12 00:44:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-12 00:44:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-12 00:44:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-12 00:44:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-12 00:44:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-12 00:44:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-12 00:44:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_6 [2023-11-12 00:44:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_6 [2023-11-12 00:44:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-12 00:44:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-12 00:44:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-12 00:44:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-12 00:44:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:44:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:44:06,601 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:06,605 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:06,736 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:44:25,217 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:32,918 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:32,919 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:44:32,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:32 BoogieIcfgContainer [2023-11-12 00:44:32,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:32,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:32,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:32,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:32,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:00" (1/3) ... [2023-11-12 00:44:32,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f41e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:32, skipping insertion in model container [2023-11-12 00:44:32,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:04" (2/3) ... [2023-11-12 00:44:32,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f41e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:32, skipping insertion in model container [2023-11-12 00:44:32,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:32" (3/3) ... [2023-11-12 00:44:32,935 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-12 00:44:32,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:32,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:44:33,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:33,090 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;@389fbda2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:33,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:44:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 2556 states, 1711 states have (on average 1.3939216832261836) internal successors, (2385), 1740 states have internal predecessors, (2385), 750 states have call successors, (750), 94 states have call predecessors, (750), 93 states have return successors, (739), 736 states have call predecessors, (739), 739 states have call successors, (739) [2023-11-12 00:44:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2023-11-12 00:44:33,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:33,160 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:33,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:33,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash 201365065, now seen corresponding path program 1 times [2023-11-12 00:44:33,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011176497] [2023-11-12 00:44:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2023-11-12 00:44:34,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011176497] [2023-11-12 00:44:34,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011176497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:34,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:34,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:44:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409591177] [2023-11-12 00:44:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:34,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:34,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:35,015 INFO L87 Difference]: Start difference. First operand has 2556 states, 1711 states have (on average 1.3939216832261836) internal successors, (2385), 1740 states have internal predecessors, (2385), 750 states have call successors, (750), 94 states have call predecessors, (750), 93 states have return successors, (739), 736 states have call predecessors, (739), 739 states have call successors, (739) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-12 00:44:38,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-12 00:44:40,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:45,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []