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-f4eb214f-m [2019-10-13 19:10:45,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:10:45,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:10:45,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:10:45,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:10:45,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:10:45,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:10:45,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:10:45,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:10:45,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:10:45,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:10:45,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:10:45,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:10:45,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:10:45,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:10:45,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:10:45,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:10:45,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:10:45,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:10:45,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:10:45,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:10:45,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:10:45,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:10:45,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:10:45,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:10:45,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:10:45,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:10:45,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:10:45,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:10:45,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:10:45,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:10:45,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:10:45,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:10:45,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:10:45,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:10:45,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:10:45,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:10:45,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:10:45,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:10:45,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:10:45,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:10:45,499 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 [2019-10-13 19:10:45,513 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:10:45,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:10:45,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:10:45,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:10:45,515 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:10:45,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:10:45,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:10:45,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:10:45,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:10:45,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:10:45,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:10:45,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:10:45,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:10:45,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:10:45,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:10:45,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:10:45,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:10:45,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:10:45,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:10:45,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:10:45,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:10:45,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:10:45,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:10:45,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:10:45,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:10:45,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:10:45,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:10:45,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:10:45,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:10:45,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:10:45,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:10:45,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:10:45,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:10:45,829 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:10:45,830 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:10:45,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557cfd896/30737b707b9c4d90a1e400741bcaddeb/FLAGd026946f4 [2019-10-13 19:10:46,694 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:10:46,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:10:46,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557cfd896/30737b707b9c4d90a1e400741bcaddeb/FLAGd026946f4 [2019-10-13 19:10:47,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557cfd896/30737b707b9c4d90a1e400741bcaddeb [2019-10-13 19:10:47,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:10:47,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:10:47,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:47,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:10:47,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:10:47,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:47" (1/1) ... [2019-10-13 19:10:47,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1dd4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:47, skipping insertion in model container [2019-10-13 19:10:47,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:47" (1/1) ... [2019-10-13 19:10:47,243 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:10:47,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:10:48,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:48,526 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:10:48,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:49,053 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:10:49,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49 WrapperNode [2019-10-13 19:10:49,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:49,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:10:49,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:10:49,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:10:49,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:10:49,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:10:49,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:10:49,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:10:49,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (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 [2019-10-13 19:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 19:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 19:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:10:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 19:10:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 19:10:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 19:10:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 19:10:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 19:10:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 19:10:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-10-13 19:10:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-10-13 19:10:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 19:10:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-10-13 19:10:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-10-13 19:10:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-10-13 19:10:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-13 19:10:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:10:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:10:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:10:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:10:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:10:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:10:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:10:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:10:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:10:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:10:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:10:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-10-13 19:10:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-10-13 19:10:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 19:10:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 19:10:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 19:10:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-10-13 19:10:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-10-13 19:10:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-10-13 19:10:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 19:10:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-10-13 19:10:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-10-13 19:10:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:10:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:10:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:10:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:10:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:10:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:10:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 19:10:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 19:10:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 19:10:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:10:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 19:10:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-10-13 19:10:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-10-13 19:10:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-10-13 19:10:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-10-13 19:10:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:10:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:10:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:10:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:10:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-10-13 19:10:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-10-13 19:10:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-10-13 19:10:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-10-13 19:10:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:10:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:10:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:10:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:10:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:10:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:10:50,436 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:10:51,637 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:10:51,637 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:10:51,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:51 BoogieIcfgContainer [2019-10-13 19:10:51,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:10:51,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:10:51,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:10:51,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:10:51,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:47" (1/3) ... [2019-10-13 19:10:51,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c927671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:51, skipping insertion in model container [2019-10-13 19:10:51,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49" (2/3) ... [2019-10-13 19:10:51,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c927671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:51, skipping insertion in model container [2019-10-13 19:10:51,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:51" (3/3) ... [2019-10-13 19:10:51,651 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 [2019-10-13 19:10:51,663 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:10:51,676 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:10:51,688 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:10:51,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:10:51,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:10:51,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:10:51,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:10:51,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:10:51,733 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:10:51,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:10:51,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:10:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states. [2019-10-13 19:10:51,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-13 19:10:51,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:51,789 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] [2019-10-13 19:10:51,792 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:51,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:51,798 INFO L82 PathProgramCache]: Analyzing trace with hash 2089942264, now seen corresponding path program 1 times [2019-10-13 19:10:51,808 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:51,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456981920] [2019-10-13 19:10:51,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:51,809 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:51,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,589 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:10:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 19:10:52,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456981920] [2019-10-13 19:10:52,802 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:10:52,802 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:10:52,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427158626] [2019-10-13 19:10:52,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:10:52,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:52,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:10:52,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:10:52,826 INFO L87 Difference]: Start difference. First operand 779 states. Second operand 7 states. [2019-10-13 19:10:53,041 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-13 19:10:53,711 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-13 19:10:56,097 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:11:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:04,327 INFO L93 Difference]: Finished difference Result 2435 states and 3011 transitions. [2019-10-13 19:11:04,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:11:04,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-10-13 19:11:04,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:04,370 INFO L225 Difference]: With dead ends: 2435 [2019-10-13 19:11:04,370 INFO L226 Difference]: Without dead ends: 1667 [2019-10-13 19:11:04,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:11:04,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2019-10-13 19:11:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1396. [2019-10-13 19:11:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2019-10-13 19:11:04,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1656 transitions. [2019-10-13 19:11:04,661 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1656 transitions. Word has length 63 [2019-10-13 19:11:04,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:04,663 INFO L462 AbstractCegarLoop]: Abstraction has 1396 states and 1656 transitions. [2019-10-13 19:11:04,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:11:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1656 transitions. [2019-10-13 19:11:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:11:04,668 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:04,668 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, 1, 1] [2019-10-13 19:11:04,669 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:04,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:04,670 INFO L82 PathProgramCache]: Analyzing trace with hash 877528209, now seen corresponding path program 1 times [2019-10-13 19:11:04,670 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:04,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586232651] [2019-10-13 19:11:04,670 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:04,670 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:04,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,030 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:11:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 19:11:05,182 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586232651] [2019-10-13 19:11:05,182 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:05,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:05,183 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208194135] [2019-10-13 19:11:05,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:05,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:05,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:05,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:05,186 INFO L87 Difference]: Start difference. First operand 1396 states and 1656 transitions. Second operand 8 states. [2019-10-13 19:11:05,346 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-13 19:11:05,579 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-13 19:11:05,792 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:11:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:16,478 INFO L93 Difference]: Finished difference Result 3272 states and 4103 transitions. [2019-10-13 19:11:16,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:11:16,478 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2019-10-13 19:11:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:16,502 INFO L225 Difference]: With dead ends: 3272 [2019-10-13 19:11:16,502 INFO L226 Difference]: Without dead ends: 3254 [2019-10-13 19:11:16,505 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:11:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2019-10-13 19:11:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2726. [2019-10-13 19:11:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2019-10-13 19:11:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3251 transitions. [2019-10-13 19:11:16,791 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3251 transitions. Word has length 65 [2019-10-13 19:11:16,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:16,791 INFO L462 AbstractCegarLoop]: Abstraction has 2726 states and 3251 transitions. [2019-10-13 19:11:16,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:11:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3251 transitions. [2019-10-13 19:11:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 19:11:16,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:16,813 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] [2019-10-13 19:11:16,814 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:16,817 INFO L82 PathProgramCache]: Analyzing trace with hash 40969385, now seen corresponding path program 1 times [2019-10-13 19:11:16,817 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:16,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876105479] [2019-10-13 19:11:16,817 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:16,818 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:16,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,046 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:11:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 19:11:17,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876105479] [2019-10-13 19:11:17,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:17,344 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:11:17,344 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258984939] [2019-10-13 19:11:17,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:11:17,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:17,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:11:17,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:11:17,349 INFO L87 Difference]: Start difference. First operand 2726 states and 3251 transitions. Second operand 11 states. [2019-10-13 19:11:17,542 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-13 19:11:17,774 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-13 19:11:17,983 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135