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--input--tablet--gtco.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:19:44,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:19:44,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:19:44,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:19:44,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:19:44,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:19:44,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:19:44,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:19:44,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:19:44,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:19:44,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:19:44,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:19:44,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:19:44,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:19:44,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:19:44,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:19:44,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:19:44,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:19:44,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:19:44,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:19:44,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:19:44,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:19:44,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:19:44,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:19:44,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:19:44,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:19:44,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:19:44,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:19:44,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:19:44,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:19:44,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:19:44,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:19:44,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:19:44,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:19:44,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:19:44,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:19:44,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:19:44,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:19:44,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:19:44,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:19:44,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:19:44,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 22:19:44,394 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:19:44,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:19:44,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:19:44,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:19:44,396 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:19:44,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:19:44,396 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:19:44,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:19:44,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:19:44,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:19:44,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:19:44,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:19:44,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:19:44,398 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:19:44,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:19:44,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:19:44,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:19:44,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:19:44,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:19:44,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:19:44,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:19:44,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:19:44,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:19:44,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:19:44,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:19:44,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:19:44,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:19:44,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:19:44,707 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:19:44,707 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-14 22:19:44,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35346d55/a53a9a0f76f54dbd8318a7e2fc390507/FLAG62d837c3d [2019-10-14 22:19:45,517 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:19:45,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-14 22:19:45,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35346d55/a53a9a0f76f54dbd8318a7e2fc390507/FLAG62d837c3d [2019-10-14 22:19:45,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35346d55/a53a9a0f76f54dbd8318a7e2fc390507 [2019-10-14 22:19:45,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:19:45,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:19:45,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:19:45,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:19:45,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:19:45,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:45" (1/1) ... [2019-10-14 22:19:45,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0a470c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:45, skipping insertion in model container [2019-10-14 22:19:45,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:45" (1/1) ... [2019-10-14 22:19:45,684 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:19:45,795 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:19:47,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:19:47,262 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:19:47,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:19:47,757 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:19:47,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47 WrapperNode [2019-10-14 22:19:47,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:19:47,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:19:47,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:19:47,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:19:47,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:47,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... [2019-10-14 22:19:48,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:19:48,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:19:48,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:19:48,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:19:48,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:19:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:19:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:19:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:19:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-10-14 22:19:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-14 22:19:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-14 22:19:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-14 22:19:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-14 22:19:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 22:19:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 22:19:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 22:19:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:19:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:19:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-14 22:19:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2019-10-14 22:19:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2019-10-14 22:19:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-14 22:19:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2019-10-14 22:19:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-14 22:19:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-14 22:19:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-14 22:19:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-14 22:19:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-14 22:19:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 22:19:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-10-14 22:19:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-14 22:19:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2019-10-14 22:19:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-14 22:19:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-14 22:19:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-14 22:19:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-14 22:19:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:19:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 22:19:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 22:19:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-14 22:19:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-14 22:19:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2019-10-14 22:19:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:19:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-14 22:19:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:19:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:19:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:19:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:19:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:19:48,997 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:19:55,547 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-14 22:19:57,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:19:57,175 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 22:19:57,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:57 BoogieIcfgContainer [2019-10-14 22:19:57,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:19:57,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:19:57,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:19:57,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:19:57,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:45" (1/3) ... [2019-10-14 22:19:57,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2134ab03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:57, skipping insertion in model container [2019-10-14 22:19:57,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:47" (2/3) ... [2019-10-14 22:19:57,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2134ab03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:57, skipping insertion in model container [2019-10-14 22:19:57,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:57" (3/3) ... [2019-10-14 22:19:57,185 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-14 22:19:57,195 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:19:57,205 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:19:57,217 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:19:57,250 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:19:57,250 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:19:57,250 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:19:57,250 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:19:57,250 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:19:57,251 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:19:57,251 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:19:57,251 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:19:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2019-10-14 22:19:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-14 22:19:57,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:19:57,298 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:19:57,301 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:19:57,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:19:57,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1102229279, now seen corresponding path program 1 times [2019-10-14 22:19:57,317 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:19:57,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709154163] [2019-10-14 22:19:57,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:57,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:57,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:19:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:04,859 WARN L191 SmtUtils]: Spent 6.61 s on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-14 22:20:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:20:05,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709154163] [2019-10-14 22:20:05,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:20:05,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 22:20:05,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645540167] [2019-10-14 22:20:05,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 22:20:05,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:20:05,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 22:20:05,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 22:20:05,095 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 6 states. [2019-10-14 22:20:11,152 WARN L191 SmtUtils]: Spent 6.01 s on a formula simplification that was a NOOP. DAG size: 1117 [2019-10-14 22:20:20,659 WARN L191 SmtUtils]: Spent 6.08 s on a formula simplification that was a NOOP. DAG size: 1119