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_2a-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 19:11:26,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:11:26,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:11:26,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:11:26,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:11:26,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:11:26,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:11:26,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:11:26,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:11:26,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:11:26,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:11:26,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:11:26,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:11:26,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:11:26,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:11:26,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:11:26,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:11:26,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:11:26,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:11:26,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:11:26,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:11:26,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:11:26,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:11:26,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:11:26,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:11:26,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:11:26,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:11:26,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:11:26,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:11:26,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:11:26,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:11:26,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:11:26,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:11:26,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:11:26,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:11:26,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:11:26,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:11:26,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:11:26,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:11:26,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:11:26,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:11:26,258 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 19:11:26,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:11:26,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:11:26,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:11:26,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:11:26,272 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:11:26,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:11:26,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:11:26,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:11:26,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:11:26,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:11:26,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:11:26,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:11:26,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:11:26,274 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:11:26,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:11:26,275 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:11:26,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:11:26,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:11:26,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:11:26,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:11:26,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:11:26,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:11:26,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:11:26,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:11:26,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:11:26,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:11:26,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:11:26,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:11:26,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:11:26,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:11:26,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:11:26,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:11:26,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:11:26,563 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:11:26,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:26,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6085b945d/c579c5454d544e04950d03606d1fc1df/FLAG297ca32d7 [2019-10-13 19:11:27,337 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:11:27,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:27,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6085b945d/c579c5454d544e04950d03606d1fc1df/FLAG297ca32d7 [2019-10-13 19:11:27,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6085b945d/c579c5454d544e04950d03606d1fc1df [2019-10-13 19:11:27,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:11:27,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:11:27,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:11:27,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:11:27,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:11:27,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:11:27" (1/1) ... [2019-10-13 19:11:27,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6764f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:27, skipping insertion in model container [2019-10-13 19:11:27,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:11:27" (1/1) ... [2019-10-13 19:11:27,512 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:11:27,618 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:11:28,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:11:28,865 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:11:29,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:11:29,199 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:11:29,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29 WrapperNode [2019-10-13 19:11:29,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:11:29,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:11:29,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:11:29,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:11:29,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (1/1) ... [2019-10-13 19:11:29,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:11:29,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:11:29,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:11:29,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:11:29,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (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 19:11:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:11:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:11:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:11:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 19:11:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 19:11:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 19:11:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-13 19:11:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 19:11:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 19:11:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2019-10-13 19:11:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:11:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:11:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 19:11:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:11:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:11:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:11:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:11:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:11:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:11:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:11:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:11:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:11:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-13 19:11:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-13 19:11:29,594 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-13 19:11:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2019-10-13 19:11:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-13 19:11:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-13 19:11:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-13 19:11:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2019-10-13 19:11:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2019-10-13 19:11:29,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2019-10-13 19:11:29,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2019-10-13 19:11:29,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2019-10-13 19:11:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2019-10-13 19:11:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2019-10-13 19:11:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-13 19:11:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:11:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 19:11:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2019-10-13 19:11:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-13 19:11:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-10-13 19:11:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-13 19:11:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-13 19:11:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-13 19:11:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2019-10-13 19:11:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-13 19:11:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-10-13 19:11:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:11:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 19:11:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 19:11:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 19:11:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 19:11:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 19:11:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 19:11:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 19:11:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 19:11:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 19:11:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 19:11:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 19:11:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 19:11:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 19:11:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 19:11:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 19:11:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:11:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 19:11:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 19:11:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-13 19:11:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-13 19:11:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-13 19:11:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-13 19:11:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-13 19:11:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:11:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:11:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-13 19:11:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-13 19:11:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 19:11:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 19:11:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 19:11:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 19:11:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 19:11:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 19:11:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:11:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:11:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:11:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:11:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:11:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:11:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 19:11:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:11:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 19:11:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 19:11:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 19:11:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 19:11:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:11:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:11:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 19:11:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-13 19:11:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-13 19:11:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 19:11:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 19:11:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2019-10-13 19:11:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-13 19:11:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 19:11:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-13 19:11:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:11:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:11:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 19:11:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2019-10-13 19:11:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 19:11:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 19:11:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-10-13 19:11:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-13 19:11:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-13 19:11:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-13 19:11:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-13 19:11:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-10-13 19:11:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 19:11:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 19:11:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 19:11:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 19:11:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2019-10-13 19:11:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 19:11:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 19:11:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 19:11:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 19:11:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 19:11:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 19:11:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 19:11:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:11:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:11:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:11:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:11:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 19:11:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:11:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:11:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:11:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:11:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:11:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:11:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:11:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:11:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:11:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:11:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:11:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:11:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:11:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:11:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:11:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:11:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-13 19:11:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-13 19:11:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-13 19:11:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-13 19:11:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-13 19:11:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-13 19:11:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-13 19:11:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-13 19:11:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2019-10-13 19:11:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-13 19:11:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-13 19:11:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-13 19:11:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-13 19:11:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:11:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2019-10-13 19:11:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2019-10-13 19:11:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:11:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2019-10-13 19:11:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2019-10-13 19:11:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2019-10-13 19:11:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2019-10-13 19:11:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2019-10-13 19:11:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:11:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:11:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:11:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:11:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 19:11:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 19:11:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 19:11:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 19:11:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 19:11:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 19:11:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 19:11:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 19:11:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 19:11:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:11:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:11:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:11:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:11:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:11:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:11:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:11:30,548 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:11:31,706 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:11:31,706 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:11:31,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:11:31 BoogieIcfgContainer [2019-10-13 19:11:31,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:11:31,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:11:31,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:11:31,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:11:31,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:11:27" (1/3) ... [2019-10-13 19:11:31,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171ec4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:11:31, skipping insertion in model container [2019-10-13 19:11:31,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:11:29" (2/3) ... [2019-10-13 19:11:31,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171ec4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:11:31, skipping insertion in model container [2019-10-13 19:11:31,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:11:31" (3/3) ... [2019-10-13 19:11:31,718 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:11:31,728 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:11:31,738 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:11:31,750 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:11:31,780 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:11:31,780 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:11:31,780 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:11:31,781 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:11:31,781 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:11:31,781 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:11:31,781 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:11:31,781 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:11:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states. [2019-10-13 19:11:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 19:11:31,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:31,822 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 19:11:31,825 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:31,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:31,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1288315444, now seen corresponding path program 1 times [2019-10-13 19:11:31,840 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:31,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715839913] [2019-10-13 19:11:31,841 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:31,841 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:31,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,646 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:32,814 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 19:11:32,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715839913] [2019-10-13 19:11:32,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:32,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:11:32,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61069665] [2019-10-13 19:11:32,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:11:32,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:32,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:11:32,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:11:32,843 INFO L87 Difference]: Start difference. First operand 504 states. Second operand 7 states. [2019-10-13 19:11:33,241 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:33,996 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:11:34,691 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:41,101 INFO L93 Difference]: Finished difference Result 1226 states and 1512 transitions. [2019-10-13 19:11:41,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:11:41,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2019-10-13 19:11:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:41,128 INFO L225 Difference]: With dead ends: 1226 [2019-10-13 19:11:41,128 INFO L226 Difference]: Without dead ends: 844 [2019-10-13 19:11:41,135 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 19:11:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2019-10-13 19:11:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 658. [2019-10-13 19:11:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-10-13 19:11:41,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 772 transitions. [2019-10-13 19:11:41,378 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 772 transitions. Word has length 43 [2019-10-13 19:11:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:41,379 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 772 transitions. [2019-10-13 19:11:41,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:11:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 772 transitions. [2019-10-13 19:11:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:11:41,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:41,398 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 19:11:41,398 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash 2143860229, now seen corresponding path program 1 times [2019-10-13 19:11:41,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:41,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707498520] [2019-10-13 19:11:41,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:41,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:41,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:41,825 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:42,183 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 19:11:42,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707498520] [2019-10-13 19:11:42,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:42,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:11:42,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170927730] [2019-10-13 19:11:42,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:11:42,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:42,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:11:42,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:11:42,188 INFO L87 Difference]: Start difference. First operand 658 states and 772 transitions. Second operand 11 states. [2019-10-13 19:11:42,486 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:42,900 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:11:43,271 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:48,614 INFO L93 Difference]: Finished difference Result 1500 states and 1816 transitions. [2019-10-13 19:11:48,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:11:48,615 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2019-10-13 19:11:48,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:48,622 INFO L225 Difference]: With dead ends: 1500 [2019-10-13 19:11:48,622 INFO L226 Difference]: Without dead ends: 862 [2019-10-13 19:11:48,628 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 19:11:48,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2019-10-13 19:11:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 663. [2019-10-13 19:11:48,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-13 19:11:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 776 transitions. [2019-10-13 19:11:48,813 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 776 transitions. Word has length 70 [2019-10-13 19:11:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:48,814 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 776 transitions. [2019-10-13 19:11:48,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:11:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 776 transitions. [2019-10-13 19:11:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:11:48,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:48,829 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 19:11:48,830 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:48,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:48,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1392784187, now seen corresponding path program 1 times [2019-10-13 19:11:48,830 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:48,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90521169] [2019-10-13 19:11:48,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:48,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:48,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,254 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:49,493 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 19:11:49,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90521169] [2019-10-13 19:11:49,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:49,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:49,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359937261] [2019-10-13 19:11:49,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:49,495 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:49,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:49,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:49,496 INFO L87 Difference]: Start difference. First operand 663 states and 776 transitions. Second operand 8 states. [2019-10-13 19:11:49,813 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:50,199 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-13 19:11:50,545 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:57,630 INFO L93 Difference]: Finished difference Result 2300 states and 2821 transitions. [2019-10-13 19:11:57,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:11:57,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-10-13 19:11:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:57,640 INFO L225 Difference]: With dead ends: 2300 [2019-10-13 19:11:57,640 INFO L226 Difference]: Without dead ends: 1657 [2019-10-13 19:11:57,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:11:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2019-10-13 19:11:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1325. [2019-10-13 19:11:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2019-10-13 19:11:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1558 transitions. [2019-10-13 19:11:57,898 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1558 transitions. Word has length 70 [2019-10-13 19:11:57,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:57,898 INFO L462 AbstractCegarLoop]: Abstraction has 1325 states and 1558 transitions. [2019-10-13 19:11:57,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:11:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1558 transitions. [2019-10-13 19:11:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 19:11:57,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:57,900 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 19:11:57,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:57,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:57,901 INFO L82 PathProgramCache]: Analyzing trace with hash -226781931, now seen corresponding path program 1 times [2019-10-13 19:11:57,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:57,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017521801] [2019-10-13 19:11:57,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:57,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:57,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,278 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:58,562 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 19:11:58,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017521801] [2019-10-13 19:11:58,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:58,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:58,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959912681] [2019-10-13 19:11:58,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:58,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:58,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:58,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:58,565 INFO L87 Difference]: Start difference. First operand 1325 states and 1558 transitions. Second operand 8 states. [2019-10-13 19:11:58,846 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:59,215 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-13 19:11:59,531 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:12:02,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:12:02,730 INFO L93 Difference]: Finished difference Result 1649 states and 2045 transitions. [2019-10-13 19:12:02,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:12:02,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2019-10-13 19:12:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:12:02,743 INFO L225 Difference]: With dead ends: 1649 [2019-10-13 19:12:02,743 INFO L226 Difference]: Without dead ends: 1646 [2019-10-13 19:12:02,745 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:12:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2019-10-13 19:12:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1324. [2019-10-13 19:12:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2019-10-13 19:12:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1556 transitions. [2019-10-13 19:12:02,957 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1556 transitions. Word has length 71 [2019-10-13 19:12:02,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:12:02,958 INFO L462 AbstractCegarLoop]: Abstraction has 1324 states and 1556 transitions. [2019-10-13 19:12:02,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:12:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1556 transitions. [2019-10-13 19:12:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 19:12:02,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:12:02,961 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 19:12:02,961 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:12:02,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:12:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1559554504, now seen corresponding path program 1 times [2019-10-13 19:12:02,962 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:12:02,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699942789] [2019-10-13 19:12:02,962 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:12:02,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:12:02,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:12:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,335 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:12:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:12:03,538 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 19:12:03,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699942789] [2019-10-13 19:12:03,538 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:12:03,538 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:12:03,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308615321] [2019-10-13 19:12:03,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:12:03,539 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:12:03,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:12:03,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:12:03,540 INFO L87 Difference]: Start difference. First operand 1324 states and 1556 transitions. Second operand 8 states. [2019-10-13 19:12:03,813 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:12:04,182 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 204