./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:54:30,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:54:31,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:54:31,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:54:31,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:54:31,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:54:31,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:54:31,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:54:31,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:54:31,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:54:31,132 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:54:31,133 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:54:31,134 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:54:31,134 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:54:31,135 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:54:31,136 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:54:31,136 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:54:31,137 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:54:31,137 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:54:31,138 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:54:31,139 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:54:31,144 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:54:31,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:54:31,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:54:31,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:54:31,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:54:31,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:54:31,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:54:31,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:54:31,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:54:31,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:54:31,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:54:31,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:54:31,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:54:31,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:31,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:54:31,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:54:31,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:54:31,153 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:54:31,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:54:31,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:54:31,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:54:31,155 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:54:31,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:54:31,156 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_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2023-11-24 23:54:31,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:54:31,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:54:31,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:54:31,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:54:31,494 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:54:31,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-24 23:54:34,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:54:35,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:54:35,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-24 23:54:35,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/data/ed051bcd5/3c843c26d7a04a0b9b34b03b79948c80/FLAG97f613cda [2023-11-24 23:54:35,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/data/ed051bcd5/3c843c26d7a04a0b9b34b03b79948c80 [2023-11-24 23:54:35,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:54:35,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:54:35,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:35,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:54:35,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:54:35,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:35" (1/1) ... [2023-11-24 23:54:35,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c9e93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:35, skipping insertion in model container [2023-11-24 23:54:35,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:35" (1/1) ... [2023-11-24 23:54:35,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:54:38,502 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_44f10da0-6930-49d7-8f07-0529a8cc324f/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-24 23:54:38,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:38,706 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:54:38,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [4162-4163] [2023-11-24 23:54:38,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4172] [2023-11-24 23:54:38,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4179] [2023-11-24 23:54:38,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4210] [2023-11-24 23:54:38,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4213] [2023-11-24 23:54:38,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4216] [2023-11-24 23:54:38,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4219] [2023-11-24 23:54:38,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (65), "i" (12UL)); [4519-4520] [2023-11-24 23:54:38,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (67), "i" (12UL)); [4527-4528] [2023-11-24 23:54:38,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (68), "i" (12UL)); [4535-4536] [2023-11-24 23:54:38,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (98), "i" (12UL)); [4562-4563] [2023-11-24 23:54:38,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (99), "i" (12UL)); [4570-4571] [2023-11-24 23:54:39,459 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_44f10da0-6930-49d7-8f07-0529a8cc324f/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-24 23:54:39,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:39,593 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:39,594 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:39,594 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:39,594 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:39,603 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:54:39,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39 WrapperNode [2023-11-24 23:54:39,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:39,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:39,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:54:39,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:54:39,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:39,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,146 INFO L138 Inliner]: procedures = 273, calls = 4220, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 10057 [2023-11-24 23:54:40,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:40,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:54:40,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:54:40,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:54:40,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:54:40,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:54:40,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:54:40,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:54:40,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (1/1) ... [2023-11-24 23:54:40,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:41,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:54:41,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:54:41,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f10da0-6930-49d7-8f07-0529a8cc324f/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:54:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-24 23:54:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-24 23:54:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-24 23:54:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-24 23:54:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-24 23:54:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-24 23:54:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-24 23:54:41,202 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-24 23:54:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-24 23:54:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:54:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:54:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-24 23:54:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-24 23:54:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-24 23:54:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-24 23:54:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-24 23:54:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-24 23:54:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-24 23:54:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-24 23:54:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-24 23:54:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-24 23:54:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-24 23:54:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-24 23:54:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:54:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:54:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-24 23:54:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-24 23:54:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-24 23:54:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-24 23:54:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-24 23:54:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-24 23:54:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-24 23:54:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-24 23:54:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:54:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:54:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:54:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:54:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-24 23:54:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-24 23:54:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-24 23:54:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-24 23:54:41,212 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-24 23:54:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-24 23:54:41,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-24 23:54:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-24 23:54:41,213 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-24 23:54:41,214 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-24 23:54:41,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:54:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:54:41,215 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-24 23:54:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-24 23:54:41,215 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-24 23:54:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-24 23:54:41,215 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-24 23:54:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-24 23:54:41,216 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-24 23:54:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-24 23:54:41,217 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-24 23:54:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-24 23:54:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-24 23:54:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-24 23:54:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-24 23:54:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-24 23:54:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-24 23:54:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-24 23:54:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:54:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:54:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-24 23:54:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-24 23:54:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:54:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-24 23:54:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-24 23:54:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-24 23:54:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-24 23:54:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-24 23:54:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-24 23:54:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:54:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-24 23:54:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-24 23:54:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-24 23:54:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-24 23:54:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-24 23:54:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-24 23:54:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-24 23:54:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-24 23:54:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-24 23:54:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-24 23:54:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-24 23:54:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-24 23:54:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:54:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-24 23:54:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-24 23:54:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:54:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-24 23:54:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-24 23:54:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:54:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:54:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:54:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:54:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:54:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:54:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-24 23:54:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-24 23:54:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-24 23:54:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-24 23:54:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-24 23:54:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-24 23:54:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-24 23:54:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-24 23:54:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-24 23:54:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-24 23:54:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:54:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-24 23:54:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-24 23:54:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-24 23:54:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-24 23:54:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-24 23:54:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-24 23:54:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:54:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-11-24 23:54:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-11-24 23:54:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:54:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-24 23:54:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-24 23:54:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-24 23:54:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-24 23:54:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:54:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:54:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-24 23:54:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-24 23:54:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-24 23:54:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-24 23:54:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-24 23:54:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-24 23:54:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-24 23:54:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-24 23:54:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:54:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:54:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-24 23:54:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-24 23:54:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-24 23:54:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-24 23:54:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:54:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:54:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:54:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-24 23:54:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-24 23:54:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-24 23:54:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-24 23:54:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-24 23:54:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-24 23:54:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:54:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:54:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-24 23:54:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-24 23:54:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:54:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-24 23:54:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-24 23:54:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-24 23:54:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-24 23:54:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-24 23:54:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-24 23:54:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:54:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-24 23:54:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-24 23:54:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-24 23:54:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-24 23:54:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-24 23:54:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-24 23:54:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:54:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:54:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-24 23:54:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-24 23:54:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-24 23:54:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-24 23:54:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-24 23:54:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-24 23:54:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:54:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:54:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-24 23:54:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-24 23:54:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-24 23:54:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-24 23:54:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-24 23:54:41,275 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-24 23:54:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-24 23:54:41,275 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-24 23:54:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-24 23:54:41,275 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-24 23:54:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-24 23:54:41,276 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-24 23:54:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-24 23:54:41,276 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-24 23:54:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-24 23:54:41,276 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-24 23:54:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-24 23:54:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-24 23:54:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:54:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-24 23:54:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-24 23:54:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-24 23:54:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-24 23:54:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:54:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:54:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:54:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:54:42,648 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:54:42,654 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:03,038 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:09,888 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:09,888 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:55:09,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:09 BoogieIcfgContainer [2023-11-24 23:55:09,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:09,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:09,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:09,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:09,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:54:35" (1/3) ... [2023-11-24 23:55:09,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eb2163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:09, skipping insertion in model container [2023-11-24 23:55:09,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:39" (2/3) ... [2023-11-24 23:55:09,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eb2163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:09, skipping insertion in model container [2023-11-24 23:55:09,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:09" (3/3) ... [2023-11-24 23:55:09,911 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-24 23:55:09,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:09,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:55:10,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:10,104 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;@39236e38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:10,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:55:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 2486 states, 1654 states have (on average 1.3802902055622732) internal successors, (2283), 1679 states have internal predecessors, (2283), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) [2023-11-24 23:55:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:55:10,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:10,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:10,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:10,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2050692177, now seen corresponding path program 1 times [2023-11-24 23:55:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:10,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952120244] [2023-11-24 23:55:10,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:10,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:11,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:11,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952120244] [2023-11-24 23:55:11,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952120244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:11,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:11,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:55:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813874637] [2023-11-24 23:55:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:11,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:11,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:11,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:11,308 INFO L87 Difference]: Start difference. First operand has 2486 states, 1654 states have (on average 1.3802902055622732) internal successors, (2283), 1679 states have internal predecessors, (2283), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-24 23:55:15,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:55:17,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:55:20,403 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 []