./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.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_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:41:59,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:41:59,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:41:59,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:41:59,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:41:59,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:41:59,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:41:59,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:41:59,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:41:59,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:41:59,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:41:59,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:41:59,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:41:59,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:41:59,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:41:59,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:41:59,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:41:59,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:41:59,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:41:59,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:41:59,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:41:59,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:41:59,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:41:59,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:41:59,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:41:59,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:41:59,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:41:59,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:41:59,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:41:59,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:41:59,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:41:59,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:41:59,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:41:59,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:41:59,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:41:59,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:41:59,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:41:59,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:41:59,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:41:59,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:41:59,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:41:59,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:41:59,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:41:59,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:41:59,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:41:59,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:41:59,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:41:59,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:41:59,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:41:59,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:41:59,706 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:41:59,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:41:59,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:41:59,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:41:59,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:41:59,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:41:59,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:41:59,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:41:59,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:41:59,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:41:59,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:41:59,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:41:59,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:41:59,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:41:59,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:41:59,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:41:59,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:41:59,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:41:59,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:41:59,712 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:41:59,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:41:59,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:41:59,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2022-10-17 10:42:00,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:42:00,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:42:00,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:42:00,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:42:00,078 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:42:00,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-17 10:42:00,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/data/5c8edde01/ab49d928d024475d8882b2786533df83/FLAG2963d3326 [2022-10-17 10:42:01,118 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:42:01,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-17 10:42:01,195 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/data/5c8edde01/ab49d928d024475d8882b2786533df83/FLAG2963d3326 [2022-10-17 10:42:01,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/data/5c8edde01/ab49d928d024475d8882b2786533df83 [2022-10-17 10:42:01,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:42:01,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:42:01,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:01,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:42:01,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:42:01,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:01" (1/1) ... [2022-10-17 10:42:01,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ace321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:01, skipping insertion in model container [2022-10-17 10:42:01,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:01" (1/1) ... [2022-10-17 10:42:01,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:42:01,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:42:04,130 WARN L230 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_83731be6-e125-4dbf-846f-7120be59b81f/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] [2022-10-17 10:42:04,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:04,297 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:42:04,833 WARN L230 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_83731be6-e125-4dbf-846f-7120be59b81f/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] [2022-10-17 10:42:04,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:04,986 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:42:04,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04 WrapperNode [2022-10-17 10:42:04,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:04,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:04,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:42:04,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:42:04,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,550 INFO L138 Inliner]: procedures = 273, calls = 4073, calls flagged for inlining = 105, calls inlined = 96, statements flattened = 9059 [2022-10-17 10:42:05,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:05,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:42:05,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:42:05,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:42:05,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:05,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:06,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:06,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:06,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:42:06,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:42:06,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:42:06,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:42:06,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (1/1) ... [2022-10-17 10:42:06,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:06,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:06,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83731be6-e125-4dbf-846f-7120be59b81f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:42:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 10:42:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 10:42:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-10-17 10:42:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-10-17 10:42:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-17 10:42:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-17 10:42:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-17 10:42:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-17 10:42:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-17 10:42:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:42:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:42:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-10-17 10:42:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-10-17 10:42:06,195 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-17 10:42:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-17 10:42:06,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-10-17 10:42:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-10-17 10:42:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 10:42:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 10:42:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-10-17 10:42:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-10-17 10:42:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-10-17 10:42:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-10-17 10:42:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:42:06,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:42:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-10-17 10:42:06,197 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-10-17 10:42:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-10-17 10:42:06,197 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-10-17 10:42:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-10-17 10:42:06,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-10-17 10:42:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-10-17 10:42:06,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-10-17 10:42:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:42:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:42:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:42:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:42:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-17 10:42:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-17 10:42:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-10-17 10:42:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-10-17 10:42:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-10-17 10:42:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-10-17 10:42:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-17 10:42:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-17 10:42:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-10-17 10:42:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-10-17 10:42:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:42:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:42:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-10-17 10:42:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-10-17 10:42:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-10-17 10:42:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-10-17 10:42:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 10:42:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 10:42:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-10-17 10:42:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-10-17 10:42:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-10-17 10:42:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-10-17 10:42:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2022-10-17 10:42:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2022-10-17 10:42:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-10-17 10:42:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-10-17 10:42:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-10-17 10:42:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-10-17 10:42:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:42:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2022-10-17 10:42:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2022-10-17 10:42:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 10:42:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-10-17 10:42:06,205 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-10-17 10:42:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-10-17 10:42:06,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-10-17 10:42:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-10-17 10:42:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-10-17 10:42:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:42:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-10-17 10:42:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-10-17 10:42:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-10-17 10:42:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-10-17 10:42:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-17 10:42:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-17 10:42:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-10-17 10:42:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-10-17 10:42:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-17 10:42:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-17 10:42:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-10-17 10:42:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-10-17 10:42:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:42:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-10-17 10:42:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-10-17 10:42:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:42:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 10:42:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 10:42:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:42:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:42:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:42:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:42:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-10-17 10:42:06,210 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-10-17 10:42:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 10:42:06,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 10:42:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-10-17 10:42:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-10-17 10:42:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-10-17 10:42:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-10-17 10:42:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-17 10:42:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-17 10:42:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:42:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 10:42:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 10:42:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-10-17 10:42:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-10-17 10:42:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-10-17 10:42:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-10-17 10:42:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:42:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-10-17 10:42:06,213 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-10-17 10:42:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:42:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-10-17 10:42:06,213 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-10-17 10:42:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-10-17 10:42:06,214 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-10-17 10:42:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:42:06,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:42:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-10-17 10:42:06,214 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-10-17 10:42:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-10-17 10:42:06,215 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-10-17 10:42:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-10-17 10:42:06,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-10-17 10:42:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-10-17 10:42:06,215 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-10-17 10:42:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:42:06,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:42:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-10-17 10:42:06,216 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-10-17 10:42:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-17 10:42:06,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-17 10:42:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:42:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 10:42:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 10:42:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-10-17 10:42:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-10-17 10:42:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-10-17 10:42:06,218 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-10-17 10:42:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-10-17 10:42:06,218 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-10-17 10:42:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:42:06,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:42:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-17 10:42:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-17 10:42:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:42:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-10-17 10:42:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-10-17 10:42:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-10-17 10:42:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-10-17 10:42:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 10:42:06,220 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 10:42:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:42:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-10-17 10:42:06,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-10-17 10:42:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-10-17 10:42:06,220 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-10-17 10:42:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-17 10:42:06,221 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-17 10:42:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:42:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:42:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-10-17 10:42:06,221 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-10-17 10:42:06,222 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-10-17 10:42:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-10-17 10:42:06,222 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-10-17 10:42:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-10-17 10:42:06,222 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 10:42:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 10:42:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-17 10:42:06,223 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-17 10:42:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-10-17 10:42:06,223 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-10-17 10:42:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-10-17 10:42:06,223 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-10-17 10:42:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-10-17 10:42:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-10-17 10:42:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-10-17 10:42:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-10-17 10:42:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-17 10:42:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-17 10:42:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-10-17 10:42:06,225 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-10-17 10:42:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-17 10:42:06,225 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-17 10:42:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-10-17 10:42:06,225 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-10-17 10:42:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:42:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-10-17 10:42:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-10-17 10:42:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-10-17 10:42:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-10-17 10:42:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:42:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:42:06,227 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:42:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:42:07,392 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:42:07,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:42:23,017 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:42:23,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:42:23,054 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:42:23,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:23 BoogieIcfgContainer [2022-10-17 10:42:23,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:42:23,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:42:23,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:42:23,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:42:23,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:42:01" (1/3) ... [2022-10-17 10:42:23,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cec2b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:23, skipping insertion in model container [2022-10-17 10:42:23,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:04" (2/3) ... [2022-10-17 10:42:23,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cec2b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:23, skipping insertion in model container [2022-10-17 10:42:23,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:23" (3/3) ... [2022-10-17 10:42:23,070 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-10-17 10:42:23,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:42:23,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:42:23,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:42:23,228 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@523e243e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:42:23,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:42:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 3078 states, 2381 states have (on average 1.4708105837883243) internal successors, (3502), 2407 states have internal predecessors, (3502), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) [2022-10-17 10:42:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:42:23,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:23,255 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:23,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:23,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash -767786273, now seen corresponding path program 1 times [2022-10-17 10:42:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:23,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471202968] [2022-10-17 10:42:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:23,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:42:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:42:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-17 10:42:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:42:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:24,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:24,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471202968] [2022-10-17 10:42:24,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471202968] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:24,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:24,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:42:24,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087965627] [2022-10-17 10:42:24,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:24,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:24,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:24,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:24,184 INFO L87 Difference]: Start difference. First operand has 3078 states, 2381 states have (on average 1.4708105837883243) internal successors, (3502), 2407 states have internal predecessors, (3502), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-17 10:42:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:28,400 INFO L93 Difference]: Finished difference Result 6337 states and 10000 transitions. [2022-10-17 10:42:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:28,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-10-17 10:42:28,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:28,450 INFO L225 Difference]: With dead ends: 6337 [2022-10-17 10:42:28,451 INFO L226 Difference]: Without dead ends: 3256 [2022-10-17 10:42:28,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:42:28,489 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5099 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5471 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:28,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5471 Valid, 7483 Invalid, 1716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1014 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-17 10:42:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2022-10-17 10:42:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3067. [2022-10-17 10:42:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2372 states have (on average 1.4582630691399663) internal successors, (3459), 2396 states have internal predecessors, (3459), 603 states have call successors, (603), 92 states have call predecessors, (603), 91 states have return successors, (595), 592 states have call predecessors, (595), 595 states have call successors, (595) [2022-10-17 10:42:28,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4657 transitions. [2022-10-17 10:42:28,777 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4657 transitions. Word has length 38 [2022-10-17 10:42:28,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:28,778 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 4657 transitions. [2022-10-17 10:42:28,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-17 10:42:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4657 transitions. [2022-10-17 10:42:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:42:28,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:28,781 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:28,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:42:28,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash -66186399, now seen corresponding path program 1 times [2022-10-17 10:42:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:28,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81549789] [2022-10-17 10:42:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:42:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:42:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-17 10:42:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:42:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:29,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81549789] [2022-10-17 10:42:29,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81549789] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:29,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:29,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:42:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483663417] [2022-10-17 10:42:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:29,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:29,101 INFO L87 Difference]: Start difference. First operand 3067 states and 4657 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)