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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:21:19,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:21:19,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:21:19,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:21:19,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:21:19,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:21:19,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:21:19,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:21:19,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:21:19,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:21:19,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:21:19,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:21:19,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:21:19,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:21:19,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:21:19,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:21:19,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:21:19,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:21:19,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:21:19,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:21:19,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:21:19,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:21:19,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:21:19,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:21:19,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:21:19,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:21:19,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:21:19,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:21:19,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:21:19,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:21:19,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:21:19,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:21:19,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:21:19,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:21:19,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:21:19,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:21:19,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:21:19,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:21:19,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:21:19,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:21:19,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:21:19,141 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 18:21:19,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:21:19,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:21:19,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:21:19,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:21:19,164 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:21:19,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:21:19,164 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:21:19,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:21:19,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:21:19,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:21:19,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:21:19,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:21:19,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:21:19,167 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:21:19,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:21:19,167 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:21:19,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:21:19,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:21:19,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:21:19,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:21:19,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:21:19,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:21:19,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:21:19,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:21:19,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:21:19,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:21:19,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:21:19,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:21:19,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:21:19,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:21:19,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:21:19,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:21:19,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:21:19,499 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:21:19,499 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2019-10-13 18:21:19,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761818827/1d30ba850b2747649870b456e708084b/FLAGbb245dd7b [2019-10-13 18:21:20,393 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:21:20,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2019-10-13 18:21:20,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761818827/1d30ba850b2747649870b456e708084b/FLAGbb245dd7b [2019-10-13 18:21:20,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761818827/1d30ba850b2747649870b456e708084b [2019-10-13 18:21:20,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:21:20,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:21:20,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:21:20,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:21:20,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:21:20,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:21:20" (1/1) ... [2019-10-13 18:21:20,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfc0887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:20, skipping insertion in model container [2019-10-13 18:21:20,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:21:20" (1/1) ... [2019-10-13 18:21:20,964 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:21:21,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:21:22,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:21:22,512 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:21:22,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:21:22,946 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:21:22,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22 WrapperNode [2019-10-13 18:21:22,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:21:22,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:21:22,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:21:22,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:21:22,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:22,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (1/1) ... [2019-10-13 18:21:23,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:21:23,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:21:23,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:21:23,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:21:23,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (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 18:21:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:21:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:21:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:21:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 18:21:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 18:21:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:21:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:21:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:21:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:21:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:21:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:21:23,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:21:23,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:21:23,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:21:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:21:23,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:21:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:21:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2019-10-13 18:21:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2019-10-13 18:21:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2019-10-13 18:21:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2019-10-13 18:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2019-10-13 18:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2019-10-13 18:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2019-10-13 18:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2019-10-13 18:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2019-10-13 18:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2019-10-13 18:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2019-10-13 18:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2019-10-13 18:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 18:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 18:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 18:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 18:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 18:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 18:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:21:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2019-10-13 18:21:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:21:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 18:21:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2019-10-13 18:21:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2019-10-13 18:21:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2019-10-13 18:21:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2019-10-13 18:21:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2019-10-13 18:21:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2019-10-13 18:21:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2019-10-13 18:21:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2019-10-13 18:21:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2019-10-13 18:21:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2019-10-13 18:21:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 18:21:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:21:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:21:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:21:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:21:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:21:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:21:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:21:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 18:21:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 18:21:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:21:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 18:21:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 18:21:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:21:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2019-10-13 18:21:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 18:21:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:21:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 18:21:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:21:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:21:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:21:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:21:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:21:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:21:23,379 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:21:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:21:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2019-10-13 18:21:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2019-10-13 18:21:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2019-10-13 18:21:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2019-10-13 18:21:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:21:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2019-10-13 18:21:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2019-10-13 18:21:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2019-10-13 18:21:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2019-10-13 18:21:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2019-10-13 18:21:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2019-10-13 18:21:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2019-10-13 18:21:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2019-10-13 18:21:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2019-10-13 18:21:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2019-10-13 18:21:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:21:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2019-10-13 18:21:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2019-10-13 18:21:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2019-10-13 18:21:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2019-10-13 18:21:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2019-10-13 18:21:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2019-10-13 18:21:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:21:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 18:21:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:21:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2019-10-13 18:21:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:21:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 18:21:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 18:21:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 18:21:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 18:21:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 18:21:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 18:21:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 18:21:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 18:21:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 18:21:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:21:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 18:21:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 18:21:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 18:21:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 18:21:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 18:21:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 18:21:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 18:21:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-13 18:21:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:21:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:21:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:21:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:21:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:21:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:21:24,631 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:21:25,445 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 18:21:26,483 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:21:26,484 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 18:21:26,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:21:26 BoogieIcfgContainer [2019-10-13 18:21:26,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:21:26,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:21:26,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:21:26,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:21:26,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:21:20" (1/3) ... [2019-10-13 18:21:26,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f867d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:21:26, skipping insertion in model container [2019-10-13 18:21:26,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:22" (2/3) ... [2019-10-13 18:21:26,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f867d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:21:26, skipping insertion in model container [2019-10-13 18:21:26,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:21:26" (3/3) ... [2019-10-13 18:21:26,496 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2019-10-13 18:21:26,506 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:21:26,520 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:21:26,531 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:21:26,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:21:26,569 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:21:26,570 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:21:26,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:21:26,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:21:26,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:21:26,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:21:26,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:21:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states. [2019-10-13 18:21:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 18:21:26,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:26,625 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:21:26,627 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash 29034927, now seen corresponding path program 1 times [2019-10-13 18:21:26,642 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:26,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889694793] [2019-10-13 18:21:26,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:26,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:26,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,571 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:21:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 18:21:27,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889694793] [2019-10-13 18:21:27,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:27,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:21:27,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416888342] [2019-10-13 18:21:27,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:21:27,904 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:27,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:21:27,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:21:27,925 INFO L87 Difference]: Start difference. First operand 464 states. Second operand 6 states. [2019-10-13 18:21:28,363 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 18:21:29,498 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 18:21:31,760 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 18:21:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:21:38,866 INFO L93 Difference]: Finished difference Result 1463 states and 2004 transitions. [2019-10-13 18:21:38,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 18:21:38,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-10-13 18:21:38,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:21:38,897 INFO L225 Difference]: With dead ends: 1463 [2019-10-13 18:21:38,897 INFO L226 Difference]: Without dead ends: 1009 [2019-10-13 18:21:38,907 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-10-13 18:21:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2019-10-13 18:21:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 782. [2019-10-13 18:21:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-13 18:21:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1006 transitions. [2019-10-13 18:21:39,093 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1006 transitions. Word has length 52 [2019-10-13 18:21:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:21:39,094 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1006 transitions. [2019-10-13 18:21:39,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 18:21:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1006 transitions. [2019-10-13 18:21:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 18:21:39,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:39,099 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:21:39,099 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:39,099 INFO L82 PathProgramCache]: Analyzing trace with hash -676068209, now seen corresponding path program 1 times [2019-10-13 18:21:39,099 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:39,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767046403] [2019-10-13 18:21:39,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:39,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:39,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,548 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:21:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 18:21:39,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767046403] [2019-10-13 18:21:39,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46141384] [2019-10-13 18:21:39,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:21:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:40,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 18:21:40,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:21:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 18:21:40,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 18:21:40,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2019-10-13 18:21:40,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439633333] [2019-10-13 18:21:40,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:21:40,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:21:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:21:40,115 INFO L87 Difference]: Start difference. First operand 782 states and 1006 transitions. Second operand 4 states. [2019-10-13 18:21:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:21:40,316 INFO L93 Difference]: Finished difference Result 1556 states and 2053 transitions. [2019-10-13 18:21:40,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 18:21:40,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2019-10-13 18:21:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:21:40,324 INFO L225 Difference]: With dead ends: 1556 [2019-10-13 18:21:40,324 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 18:21:40,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:21:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 18:21:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-13 18:21:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 18:21:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1014 transitions. [2019-10-13 18:21:40,455 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1014 transitions. Word has length 56 [2019-10-13 18:21:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:21:40,456 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1014 transitions. [2019-10-13 18:21:40,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:21:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1014 transitions. [2019-10-13 18:21:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 18:21:40,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:40,468 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:21:40,673 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:21:40,673 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:40,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:40,674 INFO L82 PathProgramCache]: Analyzing trace with hash -142872701, now seen corresponding path program 1 times [2019-10-13 18:21:40,675 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:40,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408064356] [2019-10-13 18:21:40,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:40,676 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:40,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,166 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:21:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 18:21:41,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408064356] [2019-10-13 18:21:41,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:41,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:21:41,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713519458] [2019-10-13 18:21:41,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:21:41,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:41,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:21:41,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:21:41,339 INFO L87 Difference]: Start difference. First operand 788 states and 1014 transitions. Second operand 6 states. [2019-10-13 18:21:41,735 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 18:21:42,321 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 18:21:42,791 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 18:21:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:21:48,071 INFO L93 Difference]: Finished difference Result 861 states and 1111 transitions. [2019-10-13 18:21:48,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 18:21:48,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-10-13 18:21:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:21:48,081 INFO L225 Difference]: With dead ends: 861 [2019-10-13 18:21:48,082 INFO L226 Difference]: Without dead ends: 858 [2019-10-13 18:21:48,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-13 18:21:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-10-13 18:21:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 787. [2019-10-13 18:21:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-13 18:21:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1012 transitions. [2019-10-13 18:21:48,218 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1012 transitions. Word has length 58 [2019-10-13 18:21:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:21:48,220 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1012 transitions. [2019-10-13 18:21:48,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 18:21:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1012 transitions. [2019-10-13 18:21:48,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 18:21:48,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:48,222 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:21:48,223 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:48,223 INFO L82 PathProgramCache]: Analyzing trace with hash -134463179, now seen corresponding path program 1 times [2019-10-13 18:21:48,224 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:48,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191348057] [2019-10-13 18:21:48,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:48,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:48,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:48,902 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:21:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 18:21:49,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191348057] [2019-10-13 18:21:49,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:49,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:21:49,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223722869] [2019-10-13 18:21:49,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:21:49,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:49,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:21:49,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:21:49,068 INFO L87 Difference]: Start difference. First operand 787 states and 1012 transitions. Second operand 6 states. [2019-10-13 18:21:49,454 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 18:21:49,970 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 18:21:50,419 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 18:21:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:21:55,389 INFO L93 Difference]: Finished difference Result 860 states and 1109 transitions. [2019-10-13 18:21:55,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 18:21:55,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-10-13 18:21:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:21:55,398 INFO L225 Difference]: With dead ends: 860 [2019-10-13 18:21:55,398 INFO L226 Difference]: Without dead ends: 857 [2019-10-13 18:21:55,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-13 18:21:55,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2019-10-13 18:21:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 786. [2019-10-13 18:21:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 18:21:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1010 transitions. [2019-10-13 18:21:55,481 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1010 transitions. Word has length 59 [2019-10-13 18:21:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:21:55,481 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1010 transitions. [2019-10-13 18:21:55,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 18:21:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1010 transitions. [2019-10-13 18:21:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 18:21:55,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:55,483 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:21:55,483 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:55,484 INFO L82 PathProgramCache]: Analyzing trace with hash 126236870, now seen corresponding path program 1 times [2019-10-13 18:21:55,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:55,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639789164] [2019-10-13 18:21:55,484 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:55,484 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:55,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,863 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:21:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 18:21:55,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639789164] [2019-10-13 18:21:55,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:55,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:21:55,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309856973] [2019-10-13 18:21:55,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:21:55,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:55,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:21:56,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:21:56,000 INFO L87 Difference]: Start difference. First operand 786 states and 1010 transitions. Second operand 6 states. [2019-10-13 18:21:56,342 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 196