./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-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a3be286b709e69b0a57c5116077a4f1ba701b437b7bdc28c28b530a36c819e5e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:12,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:13,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:31:13,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:13,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:13,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:13,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:13,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:13,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:13,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:13,097 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:13,098 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:13,099 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:13,099 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:13,100 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:13,100 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:13,101 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:13,102 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:13,102 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:13,103 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:13,103 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:13,104 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:13,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:13,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:13,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:13,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:13,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:13,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:13,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:13,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:13,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:13,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:13,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:13,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:13,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:13,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:13,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:13,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:13,113 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:13,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:13,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:13,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:13,114 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:13,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:13,114 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_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3be286b709e69b0a57c5116077a4f1ba701b437b7bdc28c28b530a36c819e5e [2023-11-23 21:31:13,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:13,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:13,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:13,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:13,390 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:13,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:31:16,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:17,502 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:17,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:31:17,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/data/a38ec5905/1b3ffb0a6c3148dd973b2db3d2d0bec0/FLAGb3c8b4c0b [2023-11-23 21:31:17,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/data/a38ec5905/1b3ffb0a6c3148dd973b2db3d2d0bec0 [2023-11-23 21:31:17,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:17,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:17,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:17,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:17,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:17,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:17" (1/1) ... [2023-11-23 21:31:17,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f83741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:17, skipping insertion in model container [2023-11-23 21:31:17,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:17" (1/1) ... [2023-11-23 21:31:17,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:20,800 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_07837fe5-05a6-434c-bca4-9888cfe0260c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i[358518,358531] [2023-11-23 21:31:21,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:21,159 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:21,308 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)); [4662-4663] [2023-11-23 21:31:21,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4672] [2023-11-23 21:31:21,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4679] [2023-11-23 21:31:21,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4712] [2023-11-23 21:31:21,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4715] [2023-11-23 21:31:21,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4718] [2023-11-23 21:31:21,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4721] [2023-11-23 21:31:21,336 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)); [5106-5107] [2023-11-23 21:31:21,337 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)); [5114-5115] [2023-11-23 21:31:21,338 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)); [5122-5123] [2023-11-23 21:31:21,339 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)); [5149-5150] [2023-11-23 21:31:21,340 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)); [5157-5158] [2023-11-23 21:31:21,781 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_07837fe5-05a6-434c-bca4-9888cfe0260c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i[358518,358531] [2023-11-23 21:31:21,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:21,992 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:21,993 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:21,993 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:21,993 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:22,001 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:22,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22 WrapperNode [2023-11-23 21:31:22,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:22,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:22,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:22,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:22,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:22,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:22,598 INFO L138 Inliner]: procedures = 319, calls = 4347, calls flagged for inlining = 123, calls inlined = 115, statements flattened = 10593 [2023-11-23 21:31:22,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:22,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:22,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:22,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:22,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:22,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:22,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:22,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:23,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:23,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:23,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:23,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (1/1) ... [2023-11-23 21:31:23,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:23,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:23,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:23,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07837fe5-05a6-434c-bca4-9888cfe0260c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:31:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:31:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-23 21:31:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-23 21:31:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:31:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:31:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:31:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:31:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:31:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:31:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:31:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:31:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:31:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:31:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:31:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-23 21:31:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-23 21:31:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-23 21:31:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-23 21:31:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-23 21:31:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-23 21:31:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:31:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:31:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-23 21:31:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-23 21:31:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-23 21:31:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-23 21:31:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:31:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:31:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-23 21:31:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-23 21:31:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-23 21:31:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-23 21:31:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-23 21:31:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-23 21:31:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-23 21:31:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-23 21:31:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:31:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:31:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:31:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:31:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:31:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:31:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-23 21:31:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-23 21:31:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-23 21:31:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-23 21:31:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-23 21:31:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-23 21:31:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:31:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:31:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:31:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:31:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-23 21:31:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-23 21:31:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-23 21:31:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-23 21:31:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:31:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:31:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-23 21:31:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-23 21:31:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-23 21:31:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-23 21:31:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-23 21:31:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-23 21:31:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-23 21:31:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-23 21:31:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:31:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:31:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-23 21:31:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-23 21:31:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:31:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-23 21:31:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-23 21:31:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-23 21:31:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-23 21:31:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-23 21:31:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-23 21:31:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:31:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_26 [2023-11-23 21:31:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_26 [2023-11-23 21:31:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-23 21:31:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-23 21:31:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-23 21:31:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-23 21:31:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:31:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:31:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:31:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:31:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-23 21:31:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-23 21:31:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 21:31:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 21:31:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:31:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:31:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:31:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-23 21:31:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-23 21:31:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:31:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:31:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:31:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 21:31:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 21:31:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:31:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:31:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:31:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:31:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-23 21:31:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-23 21:31:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:31:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:31:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-23 21:31:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-23 21:31:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-23 21:31:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-23 21:31:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:31:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-23 21:31:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-23 21:31:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:31:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:31:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-23 21:31:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-23 21:31:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:31:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:31:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-23 21:31:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-23 21:31:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-23 21:31:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-23 21:31:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:31:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:31:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-23 21:31:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-23 21:31:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:31:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:31:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-23 21:31:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-23 21:31:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-23 21:31:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-23 21:31:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:31:23,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:31:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-23 21:31:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-23 21:31:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-23 21:31:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-23 21:31:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:31:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:31:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:31:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-23 21:31:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-23 21:31:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-23 21:31:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-23 21:31:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-23 21:31:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-23 21:31:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:31:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:31:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:31:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:31:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 21:31:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 21:31:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:31:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-23 21:31:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-23 21:31:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:31:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:31:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-23 21:31:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-23 21:31:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:31:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:31:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-23 21:31:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-23 21:31:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:31:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:31:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2023-11-23 21:31:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2023-11-23 21:31:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-23 21:31:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-23 21:31:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:31:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:31:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:31:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:31:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-23 21:31:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-23 21:31:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2023-11-23 21:31:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2023-11-23 21:31:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-23 21:31:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-23 21:31:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-23 21:31:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-23 21:31:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:31:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:31:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:31:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:31:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-23 21:31:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-23 21:31:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-23 21:31:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-23 21:31:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-23 21:31:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-23 21:31:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-23 21:31:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-23 21:31:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:31:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:31:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:31:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:31:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:31:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:31:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-23 21:31:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-23 21:31:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:31:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-23 21:31:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-23 21:31:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-23 21:31:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-23 21:31:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:31:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:31:24,944 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:24,949 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:25,217 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:31:47,689 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:54,706 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:54,706 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:31:54,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:54 BoogieIcfgContainer [2023-11-23 21:31:54,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:54,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:54,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:54,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:54,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:17" (1/3) ... [2023-11-23 21:31:54,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6872044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:54, skipping insertion in model container [2023-11-23 21:31:54,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:22" (2/3) ... [2023-11-23 21:31:54,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6872044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:54, skipping insertion in model container [2023-11-23 21:31:54,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:54" (3/3) ... [2023-11-23 21:31:54,718 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:31:54,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:54,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:31:54,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:54,842 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;@46583032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:54,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:31:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 2609 states, 1737 states have (on average 1.3926309729418538) internal successors, (2419), 1774 states have internal predecessors, (2419), 772 states have call successors, (772), 99 states have call predecessors, (772), 98 states have return successors, (761), 758 states have call predecessors, (761), 761 states have call successors, (761) [2023-11-23 21:31:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-11-23 21:31:54,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:54,885 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] [2023-11-23 21:31:54,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:54,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:54,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1417362094, now seen corresponding path program 1 times [2023-11-23 21:31:54,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:54,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455067915] [2023-11-23 21:31:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:54,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2023-11-23 21:31:56,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:56,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455067915] [2023-11-23 21:31:56,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455067915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:56,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:56,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871991338] [2023-11-23 21:31:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:56,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:56,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:56,672 INFO L87 Difference]: Start difference. First operand has 2609 states, 1737 states have (on average 1.3926309729418538) internal successors, (2419), 1774 states have internal predecessors, (2419), 772 states have call successors, (772), 99 states have call predecessors, (772), 98 states have return successors, (761), 758 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-23 21:31:58,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:00,520 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 []