./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-43_2a-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_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/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_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/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_0cfaac45-4185-4d8f-8816-ac90720a9734/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 b2b7df93b51a94ba716b03fbeddaaade451179b4a653f71c9a376f3a6d0a7d2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:49,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:49,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:12:49,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:49,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:49,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:49,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:49,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:49,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:49,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:49,506 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:49,506 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:49,507 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:49,507 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:49,508 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:49,508 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:49,509 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:49,510 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:49,510 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:49,511 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:49,511 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:49,512 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:49,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:49,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:49,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:49,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:49,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:49,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:49,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:49,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:49,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:49,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:49,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:49,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:49,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:49,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:49,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:49,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:49,521 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:49,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:49,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:49,523 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:49,523 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:49,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:49,523 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_0cfaac45-4185-4d8f-8816-ac90720a9734/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2b7df93b51a94ba716b03fbeddaaade451179b4a653f71c9a376f3a6d0a7d2d [2023-11-23 21:12:49,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:49,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:49,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:49,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:49,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:49,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:12:53,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:53,738 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:53,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:12:53,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/data/abb7d5859/992e72854efe446b925fc23e6d1f759b/FLAGcf9fb59d2 [2023-11-23 21:12:53,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/data/abb7d5859/992e72854efe446b925fc23e6d1f759b [2023-11-23 21:12:53,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:53,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:53,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:53,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:53,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:53,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:53" (1/1) ... [2023-11-23 21:12:53,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cc379d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:53, skipping insertion in model container [2023-11-23 21:12:53,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:53" (1/1) ... [2023-11-23 21:12:54,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:56,993 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_0cfaac45-4185-4d8f-8816-ac90720a9734/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i[353830,353843] [2023-11-23 21:12:57,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:57,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:57,313 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] [2023-11-23 21:12:57,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4678] [2023-11-23 21:12:57,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4685] [2023-11-23 21:12:57,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4823] [2023-11-23 21:12:57,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4826] [2023-11-23 21:12:57,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4829] [2023-11-23 21:12:57,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4832] [2023-11-23 21:12:57,352 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)); [5057-5058] [2023-11-23 21:12:57,352 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)); [5065-5066] [2023-11-23 21:12:57,353 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)); [5073-5074] [2023-11-23 21:12:57,356 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)); [5100-5101] [2023-11-23 21:12:57,357 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)); [5108-5109] [2023-11-23 21:12:57,870 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_0cfaac45-4185-4d8f-8816-ac90720a9734/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i[353830,353843] [2023-11-23 21:12:57,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:58,056 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:58,057 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:58,057 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:58,057 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:58,066 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:58,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58 WrapperNode [2023-11-23 21:12:58,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:58,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:58,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:58,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:58,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:58,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:58,589 INFO L138 Inliner]: procedures = 248, calls = 4225, calls flagged for inlining = 108, calls inlined = 103, statements flattened = 10857 [2023-11-23 21:12:58,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:58,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:58,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:58,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:58,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:58,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:58,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:58,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:59,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:59,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:59,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:59,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (1/1) ... [2023-11-23 21:12:59,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:59,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:59,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:59,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfaac45-4185-4d8f-8816-ac90720a9734/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:59,313 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:12:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:12:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-23 21:12:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-23 21:12:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:12:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:12:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:12:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:12:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:12:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:12:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:12:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:12:59,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:12:59,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-23 21:12:59,322 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-23 21:12:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-23 21:12:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-23 21:12:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-23 21:12:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-23 21:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:12:59,324 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:12:59,324 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-23 21:12:59,324 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-23 21:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-23 21:12:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-23 21:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:12:59,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:12:59,325 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-23 21:12:59,326 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-23 21:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-23 21:12:59,326 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-23 21:12:59,326 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 21:12:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 21:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:12:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:12:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:12:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:12:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:12:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-23 21:12:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-23 21:12:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-23 21:12:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-23 21:12:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-23 21:12:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-23 21:12:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:12:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:12:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:12:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:12:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-23 21:12:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-23 21:12:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-23 21:12:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-23 21:12:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-23 21:12:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-23 21:12:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-23 21:12:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-23 21:12:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-23 21:12:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-23 21:12:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:12:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:12:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-23 21:12:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-23 21:12:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-23 21:12:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-23 21:12:59,338 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-23 21:12:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-23 21:12:59,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:12:59,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_28 [2023-11-23 21:12:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_28 [2023-11-23 21:12:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-23 21:12:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-23 21:12:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-23 21:12:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-23 21:12:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:12:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:12:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:12:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:12:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-23 21:12:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-23 21:12:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:12:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:12:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-23 21:12:59,343 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-23 21:12:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:12:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:12:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:12:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 21:12:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 21:12:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:12:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:12:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-23 21:12:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-23 21:12:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:12:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:12:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-23 21:12:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-23 21:12:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:12:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:12:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-23 21:12:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-23 21:12:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:12:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-23 21:12:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-23 21:12:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:12:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:12:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-23 21:12:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-23 21:12:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:12:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:12:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-11-23 21:12:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-11-23 21:12:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-23 21:12:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-23 21:12:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-23 21:12:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-23 21:12:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:12:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:12:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-23 21:12:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-23 21:12:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:12:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-23 21:12:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-23 21:12:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-23 21:12:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:12:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:12:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-23 21:12:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-23 21:12:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:12:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:12:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-23 21:12:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-23 21:12:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-23 21:12:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-23 21:12:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:12:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:12:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:12:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-23 21:12:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-23 21:12:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-23 21:12:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-23 21:12:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-23 21:12:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-23 21:12:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:12:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:12:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:12:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:12:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 21:12:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 21:12:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:12:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:12:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:12:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-23 21:12:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-23 21:12:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:12:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:12:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-23 21:12:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-23 21:12:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2023-11-23 21:12:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2023-11-23 21:12:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-23 21:12:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-23 21:12:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:12:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:12:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:12:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:12:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-23 21:12:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-23 21:12:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2023-11-23 21:12:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2023-11-23 21:12:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-23 21:12:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-23 21:12:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-23 21:12:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-23 21:12:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:12:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:12:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:12:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:12:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-23 21:12:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-23 21:12:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-23 21:12:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-23 21:12:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-23 21:12:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-23 21:12:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-23 21:12:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-23 21:12:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:12:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:12:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:12:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-23 21:12:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:12:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:12:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-23 21:12:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-23 21:12:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-23 21:12:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-23 21:12:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-23 21:12:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-23 21:12:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:12:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:13:00,747 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:13:00,752 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:13:00,949 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:13:19,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:13:27,042 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:13:27,042 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:13:27,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:27 BoogieIcfgContainer [2023-11-23 21:13:27,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:13:27,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:13:27,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:13:27,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:13:27,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:53" (1/3) ... [2023-11-23 21:13:27,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781d92b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:27, skipping insertion in model container [2023-11-23 21:13:27,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:58" (2/3) ... [2023-11-23 21:13:27,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781d92b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:27, skipping insertion in model container [2023-11-23 21:13:27,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:27" (3/3) ... [2023-11-23 21:13:27,061 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-11-23 21:13:27,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:13:27,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:13:27,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:13:27,249 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;@5d648985, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:13:27,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:13:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 2559 states, 1710 states have (on average 1.394736842105263) internal successors, (2385), 1740 states have internal predecessors, (2385), 754 states have call successors, (754), 94 states have call predecessors, (754), 93 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) [2023-11-23 21:13:27,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2023-11-23 21:13:27,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:27,494 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] [2023-11-23 21:13:27,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:27,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1640983419, now seen corresponding path program 1 times [2023-11-23 21:13:27,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:27,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867370003] [2023-11-23 21:13:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:27,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:29,397 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 21:13:29,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:13:29,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867370003] [2023-11-23 21:13:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867370003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:29,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:29,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:13:29,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775536962] [2023-11-23 21:13:29,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:29,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:13:29,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:13:29,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:13:29,457 INFO L87 Difference]: Start difference. First operand has 2559 states, 1710 states have (on average 1.394736842105263) internal successors, (2385), 1740 states have internal predecessors, (2385), 754 states have call successors, (754), 94 states have call predecessors, (754), 93 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-11-23 21:13:33,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:13:36,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:13:38,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []