/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-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-fb55353 [2019-11-06 19:45:19,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 19:45:19,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 19:45:19,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 19:45:19,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 19:45:19,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 19:45:19,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 19:45:19,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 19:45:19,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 19:45:19,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 19:45:19,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 19:45:19,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 19:45:19,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 19:45:19,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 19:45:19,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 19:45:19,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 19:45:19,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 19:45:19,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 19:45:19,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 19:45:19,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 19:45:19,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 19:45:19,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 19:45:19,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 19:45:19,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 19:45:19,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 19:45:19,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 19:45:19,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 19:45:19,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 19:45:19,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 19:45:19,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 19:45:19,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 19:45:19,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 19:45:19,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 19:45:19,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 19:45:19,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 19:45:19,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 19:45:19,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 19:45:19,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 19:45:19,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 19:45:19,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 19:45:19,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 19:45:19,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 19:45:19,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 19:45:19,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 19:45:19,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 19:45:19,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 19:45:19,446 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 19:45:19,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 19:45:19,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 19:45:19,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 19:45:19,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 19:45:19,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 19:45:19,448 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 19:45:19,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 19:45:19,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 19:45:19,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 19:45:19,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 19:45:19,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 19:45:19,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:45:19,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 19:45:19,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 19:45:19,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 19:45:19,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 19:45:19,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 19:45:19,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 19:45:19,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 19:45:19,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 19:45:19,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 19:45:19,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 19:45:19,733 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 19:45:19,733 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 19:45:19,734 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-11-06 19:45:19,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0297613/b8f764e4c6764605b3f09c39ce3a3ec2/FLAG6a899a94e [2019-11-06 19:45:20,631 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 19:45:20,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-11-06 19:45:20,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0297613/b8f764e4c6764605b3f09c39ce3a3ec2/FLAG6a899a94e [2019-11-06 19:45:21,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0297613/b8f764e4c6764605b3f09c39ce3a3ec2 [2019-11-06 19:45:21,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 19:45:21,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 19:45:21,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 19:45:21,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 19:45:21,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 19:45:21,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:45:21" (1/1) ... [2019-11-06 19:45:21,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2208db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21, skipping insertion in model container [2019-11-06 19:45:21,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:45:21" (1/1) ... [2019-11-06 19:45:21,215 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 19:45:21,310 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 19:45:22,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:45:22,683 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 19:45:22,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:45:23,065 INFO L192 MainTranslator]: Completed translation [2019-11-06 19:45:23,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23 WrapperNode [2019-11-06 19:45:23,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 19:45:23,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 19:45:23,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 19:45:23,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 19:45:23,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... [2019-11-06 19:45:23,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 19:45:23,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 19:45:23,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 19:45:23,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 19:45:23,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:45:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 19:45:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 19:45:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 19:45:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-11-06 19:45:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-11-06 19:45:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-11-06 19:45:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-11-06 19:45:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-11-06 19:45:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 19:45:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 19:45:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-06 19:45:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 19:45:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 19:45:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 19:45:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 19:45:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 19:45:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 19:45:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 19:45:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-06 19:45:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-06 19:45:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-11-06 19:45:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-11-06 19:45:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2019-11-06 19:45:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2019-11-06 19:45:23,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2019-11-06 19:45:23,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2019-11-06 19:45:23,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-11-06 19:45:23,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-11-06 19:45:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-11-06 19:45:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-11-06 19:45:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-11-06 19:45:23,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-11-06 19:45:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 19:45:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-11-06 19:45:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2019-11-06 19:45:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-11-06 19:45:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-11-06 19:45:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-11-06 19:45:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-11-06 19:45:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-11-06 19:45:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-11-06 19:45:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-11-06 19:45:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-11-06 19:45:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-11-06 19:45:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 19:45:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-11-06 19:45:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-11-06 19:45:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-11-06 19:45:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-11-06 19:45:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-11-06 19:45:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-11-06 19:45:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-11-06 19:45:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 19:45:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 19:45:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 19:45:23,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-11-06 19:45:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 19:45:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-11-06 19:45:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-11-06 19:45:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 19:45:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 19:45:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-11-06 19:45:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2019-11-06 19:45:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-11-06 19:45:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2019-11-06 19:45:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-11-06 19:45:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-11-06 19:45:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-11-06 19:45:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-11-06 19:45:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-11-06 19:45:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-11-06 19:45:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-11-06 19:45:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-11-06 19:45:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-11-06 19:45:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-11-06 19:45:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-11-06 19:45:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-11-06 19:45:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-11-06 19:45:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-11-06 19:45:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-11-06 19:45:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 19:45:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 19:45:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 19:45:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-06 19:45:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 19:45:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 19:45:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 19:45:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 19:45:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 19:45:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 19:45:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 19:45:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 19:45:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-11-06 19:45:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-11-06 19:45:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-11-06 19:45:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2019-11-06 19:45:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-11-06 19:45:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 19:45:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 19:45:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 19:45:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 19:45:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 19:45:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-06 19:45:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-06 19:45:24,200 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 19:45:29,732 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-11-06 19:45:31,348 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 19:45:31,348 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-06 19:45:31,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:45:31 BoogieIcfgContainer [2019-11-06 19:45:31,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 19:45:31,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 19:45:31,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 19:45:31,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 19:45:31,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:45:21" (1/3) ... [2019-11-06 19:45:31,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4e8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:45:31, skipping insertion in model container [2019-11-06 19:45:31,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:23" (2/3) ... [2019-11-06 19:45:31,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4e8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:45:31, skipping insertion in model container [2019-11-06 19:45:31,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:45:31" (3/3) ... [2019-11-06 19:45:31,362 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-11-06 19:45:31,372 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 19:45:31,383 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 19:45:31,395 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 19:45:31,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 19:45:31,440 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 19:45:31,440 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 19:45:31,440 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 19:45:31,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 19:45:31,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 19:45:31,441 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 19:45:31,441 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 19:45:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2019-11-06 19:45:31,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-06 19:45:31,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:45:31,494 INFO L410 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] [2019-11-06 19:45:31,496 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:45:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:45:31,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1102229279, now seen corresponding path program 1 times [2019-11-06 19:45:31,511 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:45:31,512 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937337051] [2019-11-06 19:45:31,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:45:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,414 WARN L191 SmtUtils]: Spent 5.98 s on a formula simplification that was a NOOP. DAG size: 1114 [2019-11-06 19:45:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:45:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:45:38,639 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937337051] [2019-11-06 19:45:38,640 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:45:38,640 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 19:45:38,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462277063] [2019-11-06 19:45:38,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 19:45:38,646 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:45:38,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 19:45:38,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:45:38,664 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 6 states. [2019-11-06 19:45:44,695 WARN L191 SmtUtils]: Spent 5.98 s on a formula simplification that was a NOOP. DAG size: 1117 [2019-11-06 19:45:54,050 WARN L191 SmtUtils]: Spent 6.04 s on a formula simplification that was a NOOP. DAG size: 1119 [2019-11-06 19:46:01,372 WARN L191 SmtUtils]: Spent 6.05 s on a formula simplification that was a NOOP. DAG size: 1116