./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 9bd2c7ff 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_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/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_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:41,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:41,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:49:41,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:41,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:41,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:41,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:41,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:41,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:41,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:41,302 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:41,303 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:41,304 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:41,305 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:49:41,305 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:41,306 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:41,307 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:49:41,308 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:49:41,308 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:41,309 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:49:41,310 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:49:41,311 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:49:41,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:41,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:49:41,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:41,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:41,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:49:41,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:41,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:49:41,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:49:41,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:41,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:41,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:41,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:41,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:41,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:41,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:49:41,322 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:49:41,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:49:41,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:49:41,323 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:41,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:41,324 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_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2023-11-19 04:49:41,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:41,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:41,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:41,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:41,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:41,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 04:49:44,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:45,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:45,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 04:49:45,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/data/d40d39435/36a4479ff5b2428eb2d0a96fe32dc4de/FLAGb152c2efe [2023-11-19 04:49:45,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/data/d40d39435/36a4479ff5b2428eb2d0a96fe32dc4de [2023-11-19 04:49:45,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:45,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:45,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:45,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:45,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:45,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:45" (1/1) ... [2023-11-19 04:49:45,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24869e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:45, skipping insertion in model container [2023-11-19 04:49:45,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:45" (1/1) ... [2023-11-19 04:49:45,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:48,666 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_0cac37f4-cc74-40bb-b5d2-143a72082cda/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] [2023-11-19 04:49:48,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:48,924 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:49,041 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] [2023-11-19 04:49:49,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4172] [2023-11-19 04:49:49,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4179] [2023-11-19 04:49:49,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4210] [2023-11-19 04:49:49,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4213] [2023-11-19 04:49:49,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4216] [2023-11-19 04:49:49,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4219] [2023-11-19 04:49:49,076 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] [2023-11-19 04:49:49,077 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] [2023-11-19 04:49:49,078 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] [2023-11-19 04:49:49,079 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] [2023-11-19 04:49:49,080 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] [2023-11-19 04:49:49,588 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_0cac37f4-cc74-40bb-b5d2-143a72082cda/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] [2023-11-19 04:49:49,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:49,732 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:49,732 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:49,732 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:49,732 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:49,741 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:49,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49 WrapperNode [2023-11-19 04:49:49,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:49,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:49,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:49,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:49,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:49,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,315 INFO L138 Inliner]: procedures = 273, calls = 4220, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 9859 [2023-11-19 04:49:50,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:50,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:50,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:50,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:50,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:50,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:50,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:50,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:50,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (1/1) ... [2023-11-19 04:49:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:50,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:50,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cac37f4-cc74-40bb-b5d2-143a72082cda/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 04:49:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 04:49:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-19 04:49:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-19 04:49:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 04:49:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 04:49:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:49:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:49:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 04:49:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:49:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:49:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-19 04:49:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-19 04:49:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-19 04:49:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-19 04:49:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-19 04:49:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-19 04:49:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 04:49:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 04:49:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-19 04:49:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-19 04:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-19 04:49:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-19 04:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:49:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:49:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-19 04:49:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-19 04:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-19 04:49:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-19 04:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-19 04:49:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-19 04:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-19 04:49:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-19 04:49:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:49:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 04:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 04:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-19 04:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-19 04:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-19 04:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-19 04:49:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 04:49:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 04:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-19 04:49:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-19 04:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:49:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-19 04:49:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-19 04:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-19 04:49:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-19 04:49:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 04:49:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 04:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-19 04:49:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-19 04:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-19 04:49:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-19 04:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-19 04:49:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-19 04:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-19 04:49:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-19 04:49:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-19 04:49:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-19 04:49:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-19 04:49:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-19 04:49:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-19 04:49:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-19 04:49:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-19 04:49:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:49:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-19 04:49:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-19 04:49:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-19 04:49:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-19 04:49:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 04:49:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 04:49:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-19 04:49:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-19 04:49:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-19 04:49:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-19 04:49:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-19 04:49:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-19 04:49:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:49:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-19 04:49:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-19 04:49:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:49:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 04:49:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 04:49:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:49:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:49:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:49:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:49:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:49:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:49:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-19 04:49:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-19 04:49:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 04:49:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 04:49:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-19 04:49:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-19 04:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-19 04:49:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-19 04:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 04:49:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 04:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 04:49:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 04:49:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-19 04:49:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-19 04:49:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-19 04:49:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-19 04:49:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-11-19 04:49:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-11-19 04:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-19 04:49:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-19 04:49:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-19 04:49:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-19 04:49:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:49:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:49:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-19 04:49:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-19 04:49:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-19 04:49:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-19 04:49:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-19 04:49:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-19 04:49:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-19 04:49:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-19 04:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:49:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-19 04:49:51,124 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-19 04:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-19 04:49:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-19 04:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:49:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 04:49:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 04:49:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-19 04:49:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-19 04:49:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-19 04:49:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-19 04:49:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-19 04:49:51,131 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-19 04:49:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:49:51,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:49:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-19 04:49:51,131 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-19 04:49:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:49:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-19 04:49:51,131 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-19 04:49:51,132 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-19 04:49:51,132 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-19 04:49:51,132 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 04:49:51,132 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 04:49:51,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:51,132 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-19 04:49:51,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-19 04:49:51,132 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-19 04:49:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-19 04:49:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 04:49:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 04:49:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:49:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:49:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-19 04:49:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-19 04:49:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-19 04:49:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-19 04:49:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-19 04:49:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-19 04:49:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 04:49:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 04:49:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 04:49:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 04:49:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-19 04:49:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-19 04:49:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-19 04:49:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-19 04:49:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-19 04:49:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-19 04:49:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-19 04:49:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-19 04:49:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 04:49:51,136 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 04:49:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-19 04:49:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-19 04:49:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-19 04:49:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-19 04:49:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-19 04:49:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-19 04:49:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:49:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-19 04:49:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-19 04:49:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-19 04:49:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-19 04:49:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:49:51,154 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:49:52,492 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:49:52,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:13,188 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:21,000 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:21,001 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:50:21,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:21 BoogieIcfgContainer [2023-11-19 04:50:21,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:21,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:21,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:21,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:21,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:45" (1/3) ... [2023-11-19 04:50:21,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eada85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:21, skipping insertion in model container [2023-11-19 04:50:21,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:49" (2/3) ... [2023-11-19 04:50:21,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eada85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:21, skipping insertion in model container [2023-11-19 04:50:21,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:21" (3/3) ... [2023-11-19 04:50:21,038 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 04:50:21,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:21,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:21,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:21,197 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;@19ab335d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:21,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 2479 states, 1647 states have (on average 1.381906496660595) internal successors, (2276), 1672 states have internal predecessors, (2276), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) [2023-11-19 04:50:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:50:21,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:21,235 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] [2023-11-19 04:50:21,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:21,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash 633125330, now seen corresponding path program 1 times [2023-11-19 04:50:21,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:21,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085221060] [2023-11-19 04:50:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:50:22,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:22,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085221060] [2023-11-19 04:50:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085221060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:22,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:22,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:50:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111890710] [2023-11-19 04:50:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:22,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:50:22,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:50:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:50:22,218 INFO L87 Difference]: Start difference. First operand has 2479 states, 1647 states have (on average 1.381906496660595) internal successors, (2276), 1672 states have internal predecessors, (2276), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:50:25,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:27,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:30,390 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 []