/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:11:58,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:11:58,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:11:58,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:11:58,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:11:58,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:11:58,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:11:58,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:11:58,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:11:58,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:11:58,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:11:58,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:11:58,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:11:58,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:11:58,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:11:58,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:11:58,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:11:58,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:11:58,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:11:58,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:11:58,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:11:58,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:11:58,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:11:58,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:11:58,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:11:58,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:11:58,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:11:58,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:11:58,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:11:58,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:11:58,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:11:58,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:11:58,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:11:58,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:11:58,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:11:58,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:11:58,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:11:58,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:11:58,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:11:58,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:11:58,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:11:58,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:11:58,570 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:11:58,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:11:58,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:11:58,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:11:58,571 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:11:58,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:11:58,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:11:58,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:11:58,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:11:58,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:11:58,573 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:11:58,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:11:58,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:11:58,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:11:58,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:11:58,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:11:58,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:11:58,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:11:58,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:11:58,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:11:58,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:11:58,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:11:58,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:11:58,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:11:58,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:11:58,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:11:58,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:11:58,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:11:58,902 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:11:58,903 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2019-11-06 21:11:58,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8ef98aa/826822bb57974e719429f15b36fb6ae0/FLAG2664e4dc9 [2019-11-06 21:11:59,622 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:11:59,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2019-11-06 21:11:59,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8ef98aa/826822bb57974e719429f15b36fb6ae0/FLAG2664e4dc9 [2019-11-06 21:11:59,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8ef98aa/826822bb57974e719429f15b36fb6ae0 [2019-11-06 21:11:59,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:11:59,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:11:59,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:11:59,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:11:59,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:11:59,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:11:59" (1/1) ... [2019-11-06 21:11:59,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4a3045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:59, skipping insertion in model container [2019-11-06 21:11:59,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:11:59" (1/1) ... [2019-11-06 21:11:59,819 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:11:59,906 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:12:01,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:12:01,331 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:12:01,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:12:01,806 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:12:01,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01 WrapperNode [2019-11-06 21:12:01,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:12:01,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:12:01,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:12:01,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:12:01,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:01,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:01,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:01,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:02,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:02,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:02,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... [2019-11-06 21:12:02,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:12:02,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:12:02,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:12:02,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:12:02,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:12:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:12:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:12:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-11-06 21:12:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-06 21:12:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-06 21:12:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 21:12:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-11-06 21:12:02,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-11-06 21:12:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-11-06 21:12:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-11-06 21:12:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-11-06 21:12:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-06 21:12:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-06 21:12:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-11-06 21:12:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-11-06 21:12:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-11-06 21:12:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-11-06 21:12:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-11-06 21:12:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-11-06 21:12:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-11-06 21:12:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-11-06 21:12:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-11-06 21:12:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 21:12:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 21:12:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 21:12:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-06 21:12:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-11-06 21:12:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-11-06 21:12:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-11-06 21:12:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-11-06 21:12:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-11-06 21:12:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-11-06 21:12:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-11-06 21:12:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-11-06 21:12:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-11-06 21:12:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-11-06 21:12:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-11-06 21:12:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-06 21:12:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-06 21:12:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-06 21:12:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-06 21:12:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-11-06 21:12:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-11-06 21:12:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-11-06 21:12:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-11-06 21:12:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 21:12:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-11-06 21:12:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-11-06 21:12:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-06 21:12:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-11-06 21:12:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-06 21:12:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-11-06 21:12:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-11-06 21:12:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-06 21:12:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-11-06 21:12:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-11-06 21:12:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-11-06 21:12:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-11-06 21:12:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-11-06 21:12:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-11-06 21:12:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-11-06 21:12:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-11-06 21:12:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-11-06 21:12:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-11-06 21:12:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-11-06 21:12:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-11-06 21:12:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-11-06 21:12:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-11-06 21:12:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-11-06 21:12:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-11-06 21:12:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-11-06 21:12:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-11-06 21:12:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-11-06 21:12:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-11-06 21:12:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-11-06 21:12:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-11-06 21:12:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-11-06 21:12:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-11-06 21:12:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-11-06 21:12:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-11-06 21:12:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 21:12:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 21:12:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-06 21:12:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 21:12:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-11-06 21:12:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-11-06 21:12:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-06 21:12:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-11-06 21:12:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-11-06 21:12:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-11-06 21:12:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-11-06 21:12:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:12:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-11-06 21:12:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-06 21:12:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-11-06 21:12:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:12:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-11-06 21:12:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-11-06 21:12:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-11-06 21:12:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-11-06 21:12:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-11-06 21:12:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-11-06 21:12:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-11-06 21:12:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-11-06 21:12:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-11-06 21:12:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 21:12:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 21:12:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 21:12:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 21:12:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-11-06 21:12:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-11-06 21:12:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-06 21:12:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-11-06 21:12:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-11-06 21:12:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-11-06 21:12:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-11-06 21:12:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 21:12:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-11-06 21:12:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-11-06 21:12:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-11-06 21:12:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 21:12:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 21:12:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:12:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-06 21:12:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-11-06 21:12:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-06 21:12:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-11-06 21:12:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-11-06 21:12:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-11-06 21:12:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 21:12:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:12:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:12:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:12:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:12:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:12:03,424 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 21:12:03,626 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-11-06 21:12:04,654 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:12:04,654 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-06 21:12:04,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:04 BoogieIcfgContainer [2019-11-06 21:12:04,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:12:04,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:12:04,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:12:04,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:12:04,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:11:59" (1/3) ... [2019-11-06 21:12:04,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58297160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:04, skipping insertion in model container [2019-11-06 21:12:04,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:01" (2/3) ... [2019-11-06 21:12:04,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58297160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:04, skipping insertion in model container [2019-11-06 21:12:04,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:04" (3/3) ... [2019-11-06 21:12:04,665 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2019-11-06 21:12:04,674 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:12:04,689 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:12:04,700 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:12:04,742 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:12:04,742 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:12:04,742 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:12:04,742 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:12:04,742 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:12:04,742 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:12:04,743 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:12:04,743 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:12:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states. [2019-11-06 21:12:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-06 21:12:04,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:12:04,804 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2019-11-06 21:12:04,807 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:12:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:12:04,813 INFO L82 PathProgramCache]: Analyzing trace with hash -975117847, now seen corresponding path program 1 times [2019-11-06 21:12:04,821 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:12:04,822 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232264113] [2019-11-06 21:12:04,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:12:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,513 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-11-06 21:12:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:12:05,627 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232264113] [2019-11-06 21:12:05,628 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:12:05,628 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 21:12:05,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583341788] [2019-11-06 21:12:05,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 21:12:05,634 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:12:05,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 21:12:05,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:12:05,656 INFO L87 Difference]: Start difference. First operand 871 states. Second operand 6 states. [2019-11-06 21:12:05,948 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-11-06 21:12:06,552 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-06 21:12:09,192 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-06 21:12:18,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:12:18,329 INFO L93 Difference]: Finished difference Result 2634 states and 3333 transitions. [2019-11-06 21:12:18,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 21:12:18,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-11-06 21:12:18,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:12:18,371 INFO L225 Difference]: With dead ends: 2634 [2019-11-06 21:12:18,371 INFO L226 Difference]: Without dead ends: 1753 [2019-11-06 21:12:18,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:12:18,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2019-11-06 21:12:18,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1392. [2019-11-06 21:12:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2019-11-06 21:12:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1652 transitions. [2019-11-06 21:12:18,755 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1652 transitions. Word has length 43 [2019-11-06 21:12:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:12:18,756 INFO L462 AbstractCegarLoop]: Abstraction has 1392 states and 1652 transitions. [2019-11-06 21:12:18,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 21:12:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1652 transitions. [2019-11-06 21:12:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-06 21:12:18,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:12:18,760 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:12:18,760 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:12:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:12:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1686201532, now seen corresponding path program 1 times [2019-11-06 21:12:18,761 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:12:18,761 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396825752] [2019-11-06 21:12:18,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:12:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,053 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-11-06 21:12:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:12:19,166 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396825752] [2019-11-06 21:12:19,166 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:12:19,166 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 21:12:19,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112043907] [2019-11-06 21:12:19,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:12:19,168 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:12:19,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:12:19,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:12:19,169 INFO L87 Difference]: Start difference. First operand 1392 states and 1652 transitions. Second operand 7 states. [2019-11-06 21:12:19,374 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-11-06 21:12:19,645 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-06 21:12:19,916 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-06 21:12:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:12:33,584 INFO L93 Difference]: Finished difference Result 3522 states and 4535 transitions. [2019-11-06 21:12:33,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 21:12:33,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-06 21:12:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:12:33,605 INFO L225 Difference]: With dead ends: 3522 [2019-11-06 21:12:33,606 INFO L226 Difference]: Without dead ends: 3501 [2019-11-06 21:12:33,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:12:33,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2019-11-06 21:12:33,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2725. [2019-11-06 21:12:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2725 states. [2019-11-06 21:12:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 3251 transitions. [2019-11-06 21:12:33,929 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 3251 transitions. Word has length 45 [2019-11-06 21:12:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:12:33,930 INFO L462 AbstractCegarLoop]: Abstraction has 2725 states and 3251 transitions. [2019-11-06 21:12:33,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:12:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 3251 transitions. [2019-11-06 21:12:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-06 21:12:33,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:12:33,948 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:12:33,949 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:12:33,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:12:33,949 INFO L82 PathProgramCache]: Analyzing trace with hash 35170572, now seen corresponding path program 1 times [2019-11-06 21:12:33,949 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:12:33,950 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053259264] [2019-11-06 21:12:33,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:12:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,251 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-11-06 21:12:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:12:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-06 21:12:34,612 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053259264] [2019-11-06 21:12:34,612 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:12:34,612 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:12:34,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329568313] [2019-11-06 21:12:34,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:12:34,613 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:12:34,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:12:34,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:12:34,614 INFO L87 Difference]: Start difference. First operand 2725 states and 3251 transitions. Second operand 10 states. [2019-11-06 21:12:34,843 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-11-06 21:12:35,137 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-06 21:12:35,410 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 141