/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/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-fb55353 [2019-11-06 21:13:18,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:13:18,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:13:18,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:13:18,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:13:18,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:13:18,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:13:18,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:13:18,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:13:18,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:13:18,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:13:18,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:13:18,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:13:19,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:13:19,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:13:19,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:13:19,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:13:19,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:13:19,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:13:19,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:13:19,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:13:19,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:13:19,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:13:19,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:13:19,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:13:19,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:13:19,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:13:19,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:13:19,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:13:19,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:13:19,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:13:19,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:13:19,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:13:19,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:13:19,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:13:19,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:13:19,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:13:19,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:13:19,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:13:19,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:13:19,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:13:19,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:13:19,071 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:13:19,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:13:19,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:13:19,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:13:19,073 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:13:19,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:13:19,077 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:13:19,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:13:19,078 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:13:19,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:13:19,079 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:13:19,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:13:19,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:13:19,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:13:19,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:13:19,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:13:19,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:13:19,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:13:19,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:13:19,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:13:19,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:13:19,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:13:19,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:13:19,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:13:19,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:13:19,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:13:19,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:13:19,351 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:13:19,351 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:13:19,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-06 21:13:19,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fafe0eace/02744694578f4c23b9d81218b191106c/FLAG464ea9cbb [2019-11-06 21:13:20,107 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:13:20,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-06 21:13:20,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fafe0eace/02744694578f4c23b9d81218b191106c/FLAG464ea9cbb [2019-11-06 21:13:20,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fafe0eace/02744694578f4c23b9d81218b191106c [2019-11-06 21:13:20,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:13:20,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:13:20,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:13:20,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:13:20,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:13:20,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:13:20" (1/1) ... [2019-11-06 21:13:20,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c237ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:20, skipping insertion in model container [2019-11-06 21:13:20,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:13:20" (1/1) ... [2019-11-06 21:13:20,237 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:13:20,343 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:13:21,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:13:21,552 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:13:21,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:13:21,945 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:13:21,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21 WrapperNode [2019-11-06 21:13:21,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:13:21,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:13:21,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:13:21,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:13:21,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:21,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... [2019-11-06 21:13:22,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:13:22,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:13:22,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:13:22,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:13:22,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:13:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:13:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:13:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-06 21:13:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-06 21:13:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 21:13:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-11-06 21:13:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-11-06 21:13:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-11-06 21:13:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-11-06 21:13:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-06 21:13:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-06 21:13:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-11-06 21:13:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-11-06 21:13:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-11-06 21:13:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-11-06 21:13:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-11-06 21:13:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-11-06 21:13:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-11-06 21:13:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 21:13:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 21:13:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-06 21:13:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-06 21:13:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 21:13:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 21:13:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 21:13:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-11-06 21:13:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-11-06 21:13:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-11-06 21:13:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-11-06 21:13:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-11-06 21:13:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-11-06 21:13:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-06 21:13:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-06 21:13:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-06 21:13:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-06 21:13:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-11-06 21:13:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-11-06 21:13:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-06 21:13:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-11-06 21:13:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-11-06 21:13:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-06 21:13:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-11-06 21:13:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-11-06 21:13:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-11-06 21:13:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-11-06 21:13:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-11-06 21:13:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-11-06 21:13:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-11-06 21:13:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-11-06 21:13:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-11-06 21:13:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-11-06 21:13:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-11-06 21:13:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-11-06 21:13:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-11-06 21:13:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-11-06 21:13:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-11-06 21:13:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-11-06 21:13:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-11-06 21:13:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-11-06 21:13:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-11-06 21:13:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 21:13:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 21:13:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-06 21:13:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 21:13:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:13:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-06 21:13:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-11-06 21:13:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-11-06 21:13:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-06 21:13:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-11-06 21:13:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-06 21:13:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-11-06 21:13:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-11-06 21:13:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-11-06 21:13:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-11-06 21:13:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:13:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-06 21:13:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-11-06 21:13:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:13:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-06 21:13:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-11-06 21:13:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-06 21:13:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-11-06 21:13:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-06 21:13:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-06 21:13:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-06 21:13:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-11-06 21:13:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-11-06 21:13:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-11-06 21:13:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-11-06 21:13:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-11-06 21:13:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-11-06 21:13:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:13:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-11-06 21:13:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-11-06 21:13:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-11-06 21:13:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-11-06 21:13:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-11-06 21:13:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-11-06 21:13:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-11-06 21:13:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:13:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 21:13:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-11-06 21:13:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-11-06 21:13:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-11-06 21:13:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-11-06 21:13:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-11-06 21:13:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 21:13:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:13:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:13:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:13:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:13:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:13:23,339 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 21:13:24,693 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:13:24,694 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-06 21:13:24,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:13:24 BoogieIcfgContainer [2019-11-06 21:13:24,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:13:24,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:13:24,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:13:24,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:13:24,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:13:20" (1/3) ... [2019-11-06 21:13:24,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a7f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:13:24, skipping insertion in model container [2019-11-06 21:13:24,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:13:21" (2/3) ... [2019-11-06 21:13:24,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a7f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:13:24, skipping insertion in model container [2019-11-06 21:13:24,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:13:24" (3/3) ... [2019-11-06 21:13:24,710 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 [2019-11-06 21:13:24,722 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:13:24,735 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:13:24,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:13:24,778 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:13:24,778 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:13:24,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:13:24,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:13:24,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:13:24,778 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:13:24,779 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:13:24,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:13:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states. [2019-11-06 21:13:24,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-06 21:13:24,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:13:24,824 INFO L410 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] [2019-11-06 21:13:24,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:13:24,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:13:24,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2089942264, now seen corresponding path program 1 times [2019-11-06 21:13:24,838 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:13:24,839 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771669370] [2019-11-06 21:13:24,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:13:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,496 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-06 21:13:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-06 21:13:25,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771669370] [2019-11-06 21:13:25,682 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:13:25,683 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 21:13:25,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344441920] [2019-11-06 21:13:25,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:13:25,688 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:13:25,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:13:25,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:13:25,705 INFO L87 Difference]: Start difference. First operand 779 states. Second operand 7 states. [2019-11-06 21:13:25,991 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-11-06 21:13:26,556 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-06 21:13:28,805 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-11-06 21:13:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:13:37,260 INFO L93 Difference]: Finished difference Result 2435 states and 3011 transitions. [2019-11-06 21:13:37,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 21:13:37,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-11-06 21:13:37,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:13:37,295 INFO L225 Difference]: With dead ends: 2435 [2019-11-06 21:13:37,295 INFO L226 Difference]: Without dead ends: 1667 [2019-11-06 21:13:37,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:13:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2019-11-06 21:13:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1396. [2019-11-06 21:13:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1396 states. [2019-11-06 21:13:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1656 transitions. [2019-11-06 21:13:37,625 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1656 transitions. Word has length 63 [2019-11-06 21:13:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:13:37,626 INFO L462 AbstractCegarLoop]: Abstraction has 1396 states and 1656 transitions. [2019-11-06 21:13:37,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:13:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1656 transitions. [2019-11-06 21:13:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 21:13:37,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:13:37,630 INFO L410 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] [2019-11-06 21:13:37,631 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:13:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:13:37,631 INFO L82 PathProgramCache]: Analyzing trace with hash 877528209, now seen corresponding path program 1 times [2019-11-06 21:13:37,632 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:13:37,632 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521686366] [2019-11-06 21:13:37,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:13:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:37,955 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-06 21:13:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-06 21:13:38,104 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521686366] [2019-11-06 21:13:38,104 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:13:38,105 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:13:38,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870492750] [2019-11-06 21:13:38,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:13:38,107 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:13:38,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:13:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:13:38,108 INFO L87 Difference]: Start difference. First operand 1396 states and 1656 transitions. Second operand 8 states. [2019-11-06 21:13:38,266 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-11-06 21:13:38,486 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-06 21:13:38,698 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-11-06 21:13:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:13:49,134 INFO L93 Difference]: Finished difference Result 3272 states and 4103 transitions. [2019-11-06 21:13:49,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 21:13:49,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2019-11-06 21:13:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:13:49,152 INFO L225 Difference]: With dead ends: 3272 [2019-11-06 21:13:49,152 INFO L226 Difference]: Without dead ends: 3254 [2019-11-06 21:13:49,155 INFO L630 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 [2019-11-06 21:13:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2019-11-06 21:13:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2726. [2019-11-06 21:13:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2019-11-06 21:13:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3251 transitions. [2019-11-06 21:13:49,457 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3251 transitions. Word has length 65 [2019-11-06 21:13:49,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:13:49,458 INFO L462 AbstractCegarLoop]: Abstraction has 2726 states and 3251 transitions. [2019-11-06 21:13:49,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:13:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3251 transitions. [2019-11-06 21:13:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-11-06 21:13:49,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:13:49,474 INFO L410 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] [2019-11-06 21:13:49,474 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:13:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:13:49,474 INFO L82 PathProgramCache]: Analyzing trace with hash 40969385, now seen corresponding path program 1 times [2019-11-06 21:13:49,475 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:13:49,475 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029683665] [2019-11-06 21:13:49,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:13:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,790 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-06 21:13:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-06 21:13:50,121 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029683665] [2019-11-06 21:13:50,121 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:13:50,121 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 21:13:50,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325489051] [2019-11-06 21:13:50,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 21:13:50,122 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:13:50,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 21:13:50,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:13:50,123 INFO L87 Difference]: Start difference. First operand 2726 states and 3251 transitions. Second operand 11 states. [2019-11-06 21:13:50,292 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-11-06 21:13:50,537 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-06 21:13:50,748 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 135