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-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:09:45,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:09:45,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:09:45,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:09:45,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:09:45,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:09:45,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:09:45,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:09:45,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:09:45,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:09:45,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:09:45,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:09:45,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:09:45,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:09:45,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:09:45,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:09:45,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:09:45,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:09:45,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:09:45,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:09:45,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:09:45,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:09:45,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:09:45,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:09:45,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:09:45,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:09:45,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:09:45,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:09:45,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:09:45,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:09:45,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:09:45,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:09:45,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:09:45,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:09:45,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:09:45,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:09:45,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:09:45,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:09:45,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:09:45,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:09:45,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:09:45,162 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 [2019-10-14 23:09:45,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:09:45,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:09:45,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:09:45,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:09:45,201 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:09:45,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:09:45,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:09:45,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:09:45,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:09:45,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:09:45,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:09:45,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:09:45,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:09:45,203 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:09:45,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:09:45,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:09:45,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:09:45,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:09:45,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:09:45,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:09:45,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:09:45,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:45,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:09:45,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:09:45,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:09:45,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:09:45,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:09:45,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:09:45,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:09:45,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:09:45,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:09:45,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:09:45,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:09:45,571 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:09:45,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:45,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5c3dc37/1b7b15672d8445d9ba9fe015faaae332/FLAG92ef8bbf5 [2019-10-14 23:09:46,321 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:09:46,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:46,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5c3dc37/1b7b15672d8445d9ba9fe015faaae332/FLAG92ef8bbf5 [2019-10-14 23:09:46,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f5c3dc37/1b7b15672d8445d9ba9fe015faaae332 [2019-10-14 23:09:46,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:09:46,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:09:46,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:46,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:09:46,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:09:46,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:46" (1/1) ... [2019-10-14 23:09:46,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e67b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:46, skipping insertion in model container [2019-10-14 23:09:46,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:46" (1/1) ... [2019-10-14 23:09:46,533 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:09:46,646 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:09:47,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:47,704 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:09:47,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:48,168 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:09:48,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48 WrapperNode [2019-10-14 23:09:48,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:48,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:09:48,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:09:48,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:09:48,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:09:48,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:09:48,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:09:48,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:09:48,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (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 [2019-10-14 23:09:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:09:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:09:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-14 23:09:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-14 23:09:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 23:09:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-14 23:09:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-14 23:09:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-14 23:09:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-14 23:09:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-14 23:09:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-14 23:09:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-10-14 23:09:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-10-14 23:09:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-14 23:09:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-10-14 23:09:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-10-14 23:09:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-10-14 23:09:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-14 23:09:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:09:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:09:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-10-14 23:09:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-10-14 23:09:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-10-14 23:09:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-10-14 23:09:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-10-14 23:09:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-10-14 23:09:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-10-14 23:09:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-10-14 23:09:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 23:09:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-14 23:09:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-14 23:09:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-14 23:09:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-10-14 23:09:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-14 23:09:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-10-14 23:09:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-10-14 23:09:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-10-14 23:09:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-10-14 23:09:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-10-14 23:09:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-10-14 23:09:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-10-14 23:09:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-10-14 23:09:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-10-14 23:09:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-10-14 23:09:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-10-14 23:09:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-10-14 23:09:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-10-14 23:09:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-10-14 23:09:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-10-14 23:09:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-10-14 23:09:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-10-14 23:09:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-10-14 23:09:48,516 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-10-14 23:09:48,516 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-10-14 23:09:48,516 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-14 23:09:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-10-14 23:09:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-10-14 23:09:48,519 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-10-14 23:09:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:09:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:09:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:09:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:09:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:09:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 23:09:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-14 23:09:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-14 23:09:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-14 23:09:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-10-14 23:09:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:09:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-14 23:09:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-14 23:09:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:09:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-14 23:09:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-14 23:09:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-14 23:09:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-14 23:09:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-14 23:09:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-14 23:09:48,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-14 23:09:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-10-14 23:09:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-10-14 23:09:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-10-14 23:09:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-10-14 23:09:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-10-14 23:09:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-14 23:09:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-14 23:09:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-14 23:09:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-14 23:09:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-14 23:09:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-14 23:09:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-10-14 23:09:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-10-14 23:09:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-10-14 23:09:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:09:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-14 23:09:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-14 23:09:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-10-14 23:09:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-10-14 23:09:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-10-14 23:09:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 23:09:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-14 23:09:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:09:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:09:49,444 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:09:50,519 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:09:50,520 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:09:50,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:50 BoogieIcfgContainer [2019-10-14 23:09:50,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:09:50,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:09:50,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:09:50,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:09:50,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:09:46" (1/3) ... [2019-10-14 23:09:50,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec9bf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:50, skipping insertion in model container [2019-10-14 23:09:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48" (2/3) ... [2019-10-14 23:09:50,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec9bf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:50, skipping insertion in model container [2019-10-14 23:09:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:50" (3/3) ... [2019-10-14 23:09:50,530 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:50,542 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:09:50,554 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:09:50,566 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:09:50,604 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:09:50,604 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:09:50,605 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:09:50,605 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:09:50,605 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:09:50,605 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:09:50,605 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:09:50,605 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:09:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states. [2019-10-14 23:09:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-14 23:09:50,667 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:50,668 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:09:50,672 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:50,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2089942264, now seen corresponding path program 1 times [2019-10-14 23:09:50,687 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:50,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214064064] [2019-10-14 23:09:50,688 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:50,688 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:50,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,563 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:09:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:09:51,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214064064] [2019-10-14 23:09:51,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:09:51,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:09:51,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704861441] [2019-10-14 23:09:51,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:09:51,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:09:51,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:09:51,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:09:51,819 INFO L87 Difference]: Start difference. First operand 779 states. Second operand 7 states. [2019-10-14 23:09:52,055 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-14 23:09:52,662 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-14 23:09:54,952 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:10:02,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:02,975 INFO L93 Difference]: Finished difference Result 2435 states and 3011 transitions. [2019-10-14 23:10:02,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:10:02,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-10-14 23:10:02,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:03,023 INFO L225 Difference]: With dead ends: 2435 [2019-10-14 23:10:03,023 INFO L226 Difference]: Without dead ends: 1667 [2019-10-14 23:10:03,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:10:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2019-10-14 23:10:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1396. [2019-10-14 23:10:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2019-10-14 23:10:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1656 transitions. [2019-10-14 23:10:03,334 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1656 transitions. Word has length 63 [2019-10-14 23:10:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:03,334 INFO L462 AbstractCegarLoop]: Abstraction has 1396 states and 1656 transitions. [2019-10-14 23:10:03,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:10:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1656 transitions. [2019-10-14 23:10:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:10:03,339 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:03,339 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:10:03,340 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:03,340 INFO L82 PathProgramCache]: Analyzing trace with hash 877528209, now seen corresponding path program 1 times [2019-10-14 23:10:03,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:03,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941428422] [2019-10-14 23:10:03,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:03,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:03,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,658 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:10:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:10:03,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941428422] [2019-10-14 23:10:03,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:03,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:10:03,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206971015] [2019-10-14 23:10:03,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:10:03,835 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:03,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:10:03,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:10:03,836 INFO L87 Difference]: Start difference. First operand 1396 states and 1656 transitions. Second operand 8 states. [2019-10-14 23:10:04,012 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-14 23:10:04,241 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-14 23:10:04,453 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:10:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:15,171 INFO L93 Difference]: Finished difference Result 3272 states and 4103 transitions. [2019-10-14 23:10:15,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:10:15,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2019-10-14 23:10:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:15,193 INFO L225 Difference]: With dead ends: 3272 [2019-10-14 23:10:15,193 INFO L226 Difference]: Without dead ends: 3254 [2019-10-14 23:10:15,196 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:10:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2019-10-14 23:10:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2726. [2019-10-14 23:10:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2019-10-14 23:10:15,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3251 transitions. [2019-10-14 23:10:15,520 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3251 transitions. Word has length 65 [2019-10-14 23:10:15,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:15,521 INFO L462 AbstractCegarLoop]: Abstraction has 2726 states and 3251 transitions. [2019-10-14 23:10:15,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:10:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3251 transitions. [2019-10-14 23:10:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-14 23:10:15,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:15,536 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2019-10-14 23:10:15,537 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:15,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:15,537 INFO L82 PathProgramCache]: Analyzing trace with hash 40969385, now seen corresponding path program 1 times [2019-10-14 23:10:15,537 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:15,538 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795561731] [2019-10-14 23:10:15,538 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:15,540 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:15,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,822 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:10:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-14 23:10:16,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795561731] [2019-10-14 23:10:16,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:16,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:10:16,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996377193] [2019-10-14 23:10:16,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:10:16,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:16,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:10:16,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:10:16,137 INFO L87 Difference]: Start difference. First operand 2726 states and 3251 transitions. Second operand 11 states. [2019-10-14 23:10:16,316 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-14 23:10:16,565 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-14 23:10:16,788 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 135