java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:11:24,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:11:24,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:11:24,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:11:24,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:11:24,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:11:24,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:11:24,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:11:24,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:11:24,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:11:24,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:11:24,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:11:24,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:11:24,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:11:24,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:11:24,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:11:24,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:11:24,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:11:24,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:11:24,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:11:24,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:11:24,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:11:24,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:11:24,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:11:24,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:11:24,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:11:24,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:11:24,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:11:24,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:11:24,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:11:24,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:11:24,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:11:24,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:11:24,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:11:24,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:11:24,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:11:24,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:11:24,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:11:24,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:11:24,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:11:24,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:11:24,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:11:24,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:11:24,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:11:24,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:11:24,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:11:24,139 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:11:24,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:11:24,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:11:24,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:11:24,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:11:24,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:11:24,141 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:11:24,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:11:24,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:11:24,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:11:24,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:11:24,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:11:24,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:11:24,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:11:24,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:11:24,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:11:24,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:11:24,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:11:24,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:11:24,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:11:24,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:11:24,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:11:24,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:11:24,446 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:11:24,446 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:11:24,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:24,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deff0d217/3a15e601920348979e6255d7abdd8e46/FLAGd1862b3ab [2019-10-13 19:11:25,296 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:11:25,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:25,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deff0d217/3a15e601920348979e6255d7abdd8e46/FLAGd1862b3ab [2019-10-13 19:11:25,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deff0d217/3a15e601920348979e6255d7abdd8e46 [2019-10-13 19:11:25,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:11:25,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:11:25,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:11:25,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:11:25,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:11:25,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:11:25" (1/1) ... [2019-10-13 19:11:25,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d9d5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:25, skipping insertion in model container [2019-10-13 19:11:25,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:11:25" (1/1) ... [2019-10-13 19:11:25,419 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:11:25,519 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:11:26,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:11:26,645 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:11:26,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:11:26,927 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:11:26,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26 WrapperNode [2019-10-13 19:11:26,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:11:26,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:11:26,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:11:26,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:11:26,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:26,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:26,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:26,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:27,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:27,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:27,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... [2019-10-13 19:11:27,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:11:27,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:11:27,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:11:27,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:11:27,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:11:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:11:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:11:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:11:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 19:11:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 19:11:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 19:11:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-13 19:11:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 19:11:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 19:11:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2019-10-13 19:11:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:11:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:11:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 19:11:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:11:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:11:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:11:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:11:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:11:27,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:11:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:11:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:11:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:11:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-13 19:11:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-13 19:11:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-13 19:11:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2019-10-13 19:11:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-13 19:11:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-13 19:11:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-13 19:11:27,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2019-10-13 19:11:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2019-10-13 19:11:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-13 19:11:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:11:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 19:11:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2019-10-13 19:11:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-13 19:11:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-10-13 19:11:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-10-13 19:11:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:11:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 19:11:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 19:11:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 19:11:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 19:11:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 19:11:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 19:11:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 19:11:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 19:11:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 19:11:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 19:11:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:11:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 19:11:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 19:11:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-13 19:11:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-13 19:11:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-13 19:11:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-13 19:11:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-13 19:11:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:11:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:11:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-13 19:11:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-13 19:11:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 19:11:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 19:11:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 19:11:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 19:11:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 19:11:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 19:11:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 19:11:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 19:11:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:11:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:11:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:11:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:11:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:11:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:11:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 19:11:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:11:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 19:11:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 19:11:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 19:11:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-13 19:11:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-13 19:11:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 19:11:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-10-13 19:11:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-13 19:11:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 19:11:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-13 19:11:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 19:11:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-13 19:11:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-13 19:11:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-10-13 19:11:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 19:11:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 19:11:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 19:11:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 19:11:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2019-10-13 19:11:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 19:11:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 19:11:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 19:11:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 19:11:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 19:11:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 19:11:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 19:11:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:11:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:11:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:11:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:11:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 19:11:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:11:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:11:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:11:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:11:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:11:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:11:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:11:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:11:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:11:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:11:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:11:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:11:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:11:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:11:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:11:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:11:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-13 19:11:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-13 19:11:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-13 19:11:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-13 19:11:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-13 19:11:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-13 19:11:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-13 19:11:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-13 19:11:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2019-10-13 19:11:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-13 19:11:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-13 19:11:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-13 19:11:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-13 19:11:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:11:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2019-10-13 19:11:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2019-10-13 19:11:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:11:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2019-10-13 19:11:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2019-10-13 19:11:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2019-10-13 19:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2019-10-13 19:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2019-10-13 19:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:11:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:11:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:11:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 19:11:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 19:11:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:11:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 19:11:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 19:11:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 19:11:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 19:11:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 19:11:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 19:11:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:11:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:11:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:11:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:11:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:11:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:11:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:11:27,926 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:11:29,069 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:11:29,070 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:11:29,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:11:29 BoogieIcfgContainer [2019-10-13 19:11:29,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:11:29,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:11:29,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:11:29,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:11:29,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:11:25" (1/3) ... [2019-10-13 19:11:29,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701eb580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:11:29, skipping insertion in model container [2019-10-13 19:11:29,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:26" (2/3) ... [2019-10-13 19:11:29,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701eb580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:11:29, skipping insertion in model container [2019-10-13 19:11:29,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:11:29" (3/3) ... [2019-10-13 19:11:29,082 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:29,092 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:11:29,105 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:11:29,117 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:11:29,169 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:11:29,169 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:11:29,169 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:11:29,169 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:11:29,169 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:11:29,170 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:11:29,170 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:11:29,170 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:11:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states. [2019-10-13 19:11:29,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 19:11:29,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:29,233 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, 1, 1, 1, 1] [2019-10-13 19:11:29,235 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:29,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:29,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1810453021, now seen corresponding path program 1 times [2019-10-13 19:11:29,257 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:29,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285951863] [2019-10-13 19:11:29,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:29,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:29,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,163 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:11:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:11:30,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285951863] [2019-10-13 19:11:30,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:30,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:11:30,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477228683] [2019-10-13 19:11:30,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:11:30,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:11:30,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:11:30,325 INFO L87 Difference]: Start difference. First operand 504 states. Second operand 7 states. [2019-10-13 19:11:30,721 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:31,413 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:32,135 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 19:11:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:38,359 INFO L93 Difference]: Finished difference Result 1255 states and 1548 transitions. [2019-10-13 19:11:38,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:11:38,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2019-10-13 19:11:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:38,393 INFO L225 Difference]: With dead ends: 1255 [2019-10-13 19:11:38,393 INFO L226 Difference]: Without dead ends: 864 [2019-10-13 19:11:38,401 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:11:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2019-10-13 19:11:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 678. [2019-10-13 19:11:38,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-10-13 19:11:38,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 797 transitions. [2019-10-13 19:11:38,624 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 797 transitions. Word has length 43 [2019-10-13 19:11:38,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:38,624 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 797 transitions. [2019-10-13 19:11:38,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:11:38,625 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 797 transitions. [2019-10-13 19:11:38,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:11:38,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:38,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:38,645 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:38,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1648833292, now seen corresponding path program 1 times [2019-10-13 19:11:38,646 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:38,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475620769] [2019-10-13 19:11:38,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:38,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:38,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,083 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:11:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:39,352 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 19:11:39,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475620769] [2019-10-13 19:11:39,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:39,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:11:39,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38402185] [2019-10-13 19:11:39,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:11:39,355 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:39,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:11:39,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:11:39,356 INFO L87 Difference]: Start difference. First operand 678 states and 797 transitions. Second operand 11 states. [2019-10-13 19:11:39,651 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:40,077 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:40,411 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 19:11:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:45,573 INFO L93 Difference]: Finished difference Result 1538 states and 1865 transitions. [2019-10-13 19:11:45,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:11:45,575 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2019-10-13 19:11:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:45,582 INFO L225 Difference]: With dead ends: 1538 [2019-10-13 19:11:45,583 INFO L226 Difference]: Without dead ends: 880 [2019-10-13 19:11:45,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:11:45,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2019-10-13 19:11:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 683. [2019-10-13 19:11:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-13 19:11:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 801 transitions. [2019-10-13 19:11:45,731 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 801 transitions. Word has length 70 [2019-10-13 19:11:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:45,732 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 801 transitions. [2019-10-13 19:11:45,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:11:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 801 transitions. [2019-10-13 19:11:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:11:45,736 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:45,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:45,736 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:45,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:45,737 INFO L82 PathProgramCache]: Analyzing trace with hash -890510412, now seen corresponding path program 1 times [2019-10-13 19:11:45,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:45,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471108638] [2019-10-13 19:11:45,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:45,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:45,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,136 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:11:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:46,383 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 19:11:46,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471108638] [2019-10-13 19:11:46,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:46,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:46,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829677528] [2019-10-13 19:11:46,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:46,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:46,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:46,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:46,387 INFO L87 Difference]: Start difference. First operand 683 states and 801 transitions. Second operand 8 states. [2019-10-13 19:11:46,654 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:47,047 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:47,347 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 19:11:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:54,192 INFO L93 Difference]: Finished difference Result 2346 states and 2886 transitions. [2019-10-13 19:11:54,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:11:54,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-10-13 19:11:54,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:54,214 INFO L225 Difference]: With dead ends: 2346 [2019-10-13 19:11:54,214 INFO L226 Difference]: Without dead ends: 1683 [2019-10-13 19:11:54,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:11:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-10-13 19:11:54,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1357. [2019-10-13 19:11:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2019-10-13 19:11:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1597 transitions. [2019-10-13 19:11:54,662 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1597 transitions. Word has length 70 [2019-10-13 19:11:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:54,663 INFO L462 AbstractCegarLoop]: Abstraction has 1357 states and 1597 transitions. [2019-10-13 19:11:54,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:11:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1597 transitions. [2019-10-13 19:11:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 19:11:54,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:54,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:54,671 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1836161467, now seen corresponding path program 1 times [2019-10-13 19:11:54,671 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:54,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076194016] [2019-10-13 19:11:54,672 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:54,672 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:54,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,026 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:11:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:55,238 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 19:11:55,238 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076194016] [2019-10-13 19:11:55,238 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:55,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:55,239 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143932667] [2019-10-13 19:11:55,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:55,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:55,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:55,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:55,241 INFO L87 Difference]: Start difference. First operand 1357 states and 1597 transitions. Second operand 8 states. [2019-10-13 19:11:55,498 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:55,870 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:56,177 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 19:11:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:59,702 INFO L93 Difference]: Finished difference Result 1683 states and 2086 transitions. [2019-10-13 19:11:59,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:11:59,703 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2019-10-13 19:11:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:59,712 INFO L225 Difference]: With dead ends: 1683 [2019-10-13 19:11:59,712 INFO L226 Difference]: Without dead ends: 1680 [2019-10-13 19:11:59,714 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:11:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-10-13 19:11:59,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1356. [2019-10-13 19:11:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1356 states. [2019-10-13 19:11:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1595 transitions. [2019-10-13 19:11:59,984 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1595 transitions. Word has length 71 [2019-10-13 19:11:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:59,984 INFO L462 AbstractCegarLoop]: Abstraction has 1356 states and 1595 transitions. [2019-10-13 19:11:59,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:11:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1595 transitions. [2019-10-13 19:11:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 19:11:59,987 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:59,987 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:59,987 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:59,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:59,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1086568233, now seen corresponding path program 1 times [2019-10-13 19:11:59,988 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:59,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277612712] [2019-10-13 19:11:59,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:59,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:59,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:12:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,329 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:12:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:00,534 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 19:12:00,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277612712] [2019-10-13 19:12:00,535 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:12:00,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:12:00,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332409599] [2019-10-13 19:12:00,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:12:00,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:12:00,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:12:00,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:12:00,537 INFO L87 Difference]: Start difference. First operand 1356 states and 1595 transitions. Second operand 8 states. [2019-10-13 19:12:00,882 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:12:01,244 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:12:01,581 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 198